status.json

[
  {
    "name": "Secure Contexts",
    "category": "Security",
    "link": "https://www.w3.org/TR/secure-contexts/",
    "summary": "As the web enables more powerful apps, features which enable those apps should only be enabled in contexts which meet a specific security level. This also exposes the APIs that identify if you’re in a secure context.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15063"
    },
    "id": 6021277022158848
  },
  {
    "name": "Font Variation Properties with OpenType Variable Font Support",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-fonts-4/#font-variation-props",
    "summary": "Allows multiple instances of fonts to be defined by interpolating glyph outlines along different axis.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "In Development"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "id": 4708676673732608,
    "uservoiceid": 19176292
  },
  {
    "name": "font-variant longhands",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-fonts/#font-variant-caps-prop",
    "summary": "Allows authors to utilize longhand properties of font-variant-caps, font-variant-ligatures, font-variant-numeric, font-variant-alternates, font-variant-east-asian, font-variant-position for font selection and adjustments rather than utilizing lower level props such as font-feature-settings.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "id": 5678497057996800
  },
  {
    "name": "SVG Accessibility API Mappings",
    "category": "Misc",
    "link": "https://www.w3.org/TR/svg-aam-1.0/",
    "summary": "Defines how user agents map SVG markup to platform accessibility application programming interfaces.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    }
  },
  {
    "name": "Digital Publishing Accessibility API Mappings",
    "category": "Misc",
    "link": "https://www.w3.org/TR/dpub-aam-1.0/",
    "summary": "Defines how user agents map the Digital Publishing WAI-ARIA Module markup to platform accessibility APIs.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    }
  },
  {
    "name": "-webkit-text-stroke",
    "category": "CSS",
    "link": "https://developer.mozilla.org/docs/Web/CSS/-webkit-text-stroke",
    "summary": "The -webkit-text-stroke property sets the stroke width and color of an element’s text.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "In Development"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/-webkit-text-stroke"
  },
  {
    "name": "WebVR",
    "category": "Graphics",
    "link": "https://w3c.github.io/webvr/",
    "summary": "Support for Virtual Reality applications on the web using head-mounted displays. The WebVR 1.1 API is fully supported in Microsoft Edge. Viewing WebVR content requires a Windows Mixed Reality headset, or the Windows Mixed Reality Portal Simulator (accessible via Developer Mode in the Windows 10 Creators Update).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15002"
    },
    "id": 4532810371039232,
    "msdn": "https://developer.mozilla.org/docs/Web/API/WebVR_API",
    "uservoiceid": 7119843
  },
  {
    "name": "requestIdleCallback",
    "category": "Performance",
    "link": "https://www.w3.org/TR/requestidlecallback/",
    "summary": "Allows developers to cooperatively schedule background tasks to avoid introducing delays with high priority tasks in the same event loop.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "requestidlecallback",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Window/requestIdleCallback",
    "id": 5572795866021888
  },
  {
    "name": "Support CSS transforms on SVG",
    "category": "Graphics",
    "link": "https://drafts.csswg.org/css-transforms/",
    "summary": "Enable support for CSS transforms on elements and presentational attributes of SVG",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "uservoiceid": 257854
  },
  {
    "name": "CSS resize",
    "category": "Graphics",
    "link": "https://drafts.csswg.org/css-ui/#resize",
    "summary": "Allows one to specify whether or not an element is resizable by the user, and if so, along which axis/axes",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "uservoiceid": 6513977
  },
  {
    "name": "CSS outline-offset",
    "category": "Graphics",
    "link": "https://drafts.csswg.org/css-ui/#outline-offset",
    "summary": "Allows you to define an offset from the border box for your outline",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15042"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/outline-offset",
    "uservoiceid": 6517094
  },
  {
    "name": "Frame Timing",
    "category": "Performance",
    "link": "https://www.w3.org/TR/frame-timing/",
    "summary": "An interface for web applications to access runtime performance information of the browser event loop.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "frame-timing",
    "msdn": "https://developer.mozilla.org/docs/Web/API/PerformanceFrameTiming",
    "id": 5558926443544576
  },
  {
    "name": "Performance Observer",
    "category": "Performance",
    "link": "https://w3c.github.io/performance-timeline/#the-performanceobserver-interface",
    "summary": "An interface to observe the performance timeline (https://w3c.github.io/performance-timeline) and receive notifications of new performance entries as they are recorded.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "performance-timeline-2",
    "msdn": "https://developer.mozilla.org/docs/Web/API/PerformanceObserver",
    "id": 5945504202489856
  },
  {
    "name": "CSS Containment",
    "category": "Performance",
    "link": "https://drafts.csswg.org/css-containment/",
    "summary": "A primitive for isolating style, layout, and paint. This will allow web developers to opt into the various aspects of the pipeline, allowing for UA optimizations.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "id": 6522186978295808
  },
  {
    "name": "Initial Letter",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-inline/#sizing-drop-initials",
    "summary": "Allows the author to set the size and depth at which it sinks into the surrounding text.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    }
  },
  {
    "name": "Intersection Observer",
    "category": "Performance",
    "link": "https://wicg.github.io/IntersectionObserver/",
    "summary": "An interface to allow a web developer to asynchronously query the position of an element with respect to other elements or the global viewport.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14986"
    },
    "spec": "intersection-observer",
    "msdn": "https://developer.mozilla.org/docs/Web/API/IntersectionObserver",
    "id": 5695342691483648
  },
  {
    "name": "Resize Observer",
    "category": "Performance",
    "link": "https://wicg.github.io/ResizeObserver/",
    "summary": "Allows a web developer to attach an observer to an element and a callback will be fired when that element is resized",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "id": 5705346022637568
  },
  {
    "name": "Server Timing",
    "category": "Performance",
    "link": "https://www.w3.org/TR/server-timing/",
    "summary": "Enables the server to communicate request-response cycle metrics to the user agent, and provides a JavaScript interface to enable applications to access and act on those metrics.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "server-timing"
  },
  {
    "name": "Preload",
    "category": "Performance",
    "link": "https://www.w3.org/TR/preload/",
    "summary": "A keyword that may be used with \"link\" elements which provides a declarative fetch primitive that initiates an early fetch and separates fetching from resoruce execution.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "id": 5757468554559488,
    "uservoiceid": 7666725
  },
  {
    "name": "DNS Prefetch Resource Hints",
    "category": "Performance",
    "link": "https://www.w3.org/TR/resource-hints/#dns-prefetch",
    "summary": "A link relation type used to indicate an origin that will be used to fetch required resources and that the browser should resolve as early as possible.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "resource-hints",
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "No public signals",
      "value": 2
    }
  },
  {
    "name": "Preconnect Resource Hints",
    "category": "Performance",
    "link": "https://www.w3.org/TR/resource-hints/#preconnect",
    "summary": "A link relation type used to indicate an origin that will be used to fetch required resources, so the browser can open a connection early for resouces that will be required later in the loading process.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "resource-hints",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Link_types",
    "id": 5560623895150592
  },
  {
    "name": "High Resolution Time 2",
    "category": "Performance",
    "link": "https://www.w3.org/TR/hr-time-2/",
    "summary": "An API that provides translation of the current sub-millisecond resolution time between origins.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14393"
    },
    "spec": "hr-time-2",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Performance",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "No public signals",
      "value": 2
    }
  },
  {
    "name": "High Resolution Time 3",
    "category": "Performance",
    "link": "https://www.w3.org/TR/hr-time-3/",
    "summary": "Adds performance.timeOrigin, allowing DOMHighResTimeStamps from separate Windows to be interleaved into a single timeline.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/Performance",
    "spec": "hr-time-3"
  },
  {
    "name": "Brotli Compressed Data Format",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/rfc7932",
    "summary": "Support for the Brotli data format as an HTTP content-encoding method.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14986"
    },
    "uservoiceid": 11364771,
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Encoding#Directives",
    "id": 5420797577396224
  },
  {
    "name": "<datalist> Element",
    "category": "User input",
    "link": "https://w3c.github.io/html/sec-forms.html#the-datalist-element",
    "summary": "Shows a list of pre-defined options to suggest to the user when entering an input element.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/datalist",
    "id": 6090950820495360
  },
  {
    "name": "Credential Management API",
    "category": "Security",
    "link": "https://w3c.github.io/webappsec-credential-management/",
    "summary": "Credential Management API describes an imperative API enabling a website to request a user’s credentials from a user agent, and to help the user agent correctly store user credentials for future use.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/Credential_Management_API",
    "id": 5026422640869376
  },
  {
    "name": "Web Authentication API",
    "category": "Security",
    "link": "https://w3c.github.io/webauthn/",
    "summary": "Web Authentication provides an open, scalable, and interoperable solution to facilitate authentication, which replaces passwords with stronger two-factor credentials.  The implementation in Microsoft Edge is focused on enabling Microsoft Passport with a PIN or Windows Hello to securely authenticate to Microsoft properties and third-party web sites.  As of EdgeHTML 14, the implementation is prefixed and based on the FIDO 2.0 Web APIs. Microsoft is a member of the FIDO Alliance.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "14291",
      "flag": true
    },
    "spec": "webauthn"
  },
  {
    "name": "FIDO U2F",
    "category": "Security",
    "link": "https://fidoalliance.org/specifications/overview/",
    "summary": "FIDO Universal Second Factor API allows online services to augment the security of their existing password infrastructure by adding a strong second factor to user login via a USB or NFC device. Also see FIDO 2.0 Web APIs, a newer specification that supports additional authentication methods, such as biometrics, and can replace passwords altogether as well as provide U2F functionality.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "No public signals",
      "value": 1
    },
    "id": 6413248798654464
  },
  {
    "name": "<details>/<summary>",
    "category": "Misc",
    "link": "https://w3c.github.io/html/interactive-elements.html#the-details-element",
    "summary": "Interactive widget to show/hide content.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/details",
    "id": 5348024557502464,
    "uservoiceid": 6261266
  },
  {
    "name": "webkitdirectory and webkitRelativePath",
    "category": "File APIs",
    "summary": "Support for the webkitdirectory attribute on the input tag to make it allow a directory be selected instead of files. Support for the webkitRelativePath property on the File interface to allow the identification of relative paths of files.",
    "standardStatus": "No public standards discussion",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14306"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "msdn": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/webkitdirectory"
  },
  {
    "name": "Directory Upload",
    "category": "File APIs",
    "link": "https://wicg.github.io/directory-upload/proposal.html",
    "summary": "Enable directory uploading by allowing a developer to read directory contents (files and sub-directories) asynchronously and be able to identify the directory structure.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "file-system-api",
    "msdn": "https://developer.mozilla.org/docs/Web/API/File_and_Directory_Entries_API"
  },
  {
    "name": "<img srcset>",
    "category": "Graphics",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#element-attrdef-img-srcset",
    "summary": "Enable a responsive images solution by providing the browser multiple resources in varying resolutions for a single image.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/img#attr-srcset",
    "id": 4644337115725824,
    "uservoiceid": 6261267
  },
  {
    "name": "Extended srcset and sizes support",
    "category": "Graphics",
    "link": "https://html.spec.whatwg.org/multipage/embedded-content.html#attr-img-srcset",
    "summary": "Extends the current implementation of the srcset attribute by adding support for the width descriptor and the sizes attribute.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/img#attr-sizes",
    "id": 4644337115725824,
    "uservoiceid": 8204535
  },
  {
    "name": "<picture> Element",
    "category": "Graphics",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#the-picture-element",
    "summary": "Enable a responsive images solution by declaring multiple resources for an image using CSS media queries.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/picture",
    "id": 5910974510923776,
    "uservoiceid": 6261271
  },
  {
    "name": "<template> Element",
    "category": "Web Components",
    "link": "https://w3c.github.io/html/semantics-scripting.html#the-template-element",
    "summary": "HTML template element to allow creating fragment of inert HTML as a prototype for stamping out DOM (often used in Web Components).",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/template",
    "id": 5207287069147136,
    "uservoiceid": 6261273
  },
  {
    "name": "<meter> Element",
    "category": "Misc",
    "link": "https://w3c.github.io/html/sec-forms.html#the-meter-element",
    "summary": "The HTML meter element allows representation of a scalar measurement of a known range, or fractional value, i.e. a gauge. Distinct from the progress element.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "10532"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/meter",
    "uservoiceid": 6514198
  },
  {
    "name": "selectionDirection attribute on text input elements",
    "category": "User input",
    "link": "https://w3c.github.io/html/sec-forms.html#dom-selectionapielements-selectiondirection",
    "summary": "Returns the string corresponding to the current selection direction on text input elements: \"forward\", \"backward\", or \"none\".",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement",
    "uservoiceid": 8679412
  },
  {
    "name": "oninvalid event handler",
    "category": "User input",
    "link": "https://www.w3.org/TR/html5/webappapis.html#events",
    "summary": "Provides specified alert text if an input element is invalid.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/Events/invalid"
  },
  {
    "name": "Canvas 2D ellipse",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/2dcontext/#dom-context-2d-ellipse",
    "summary": "Provides a method to draw arcs on a 2D canvas drawing surface.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "10547"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "No public signals",
      "value": 5
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Preview Release",
      "value": 1
    },
    "spec": "2dcontext",
    "msdn": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/ellipse"
  },
  {
    "name": "Canvas 2D path2D",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/2dcontext2/#path2d-objects",
    "summary": "Path2D objects can be used to declare paths that are then later used on CanvasRenderingContext2D objects.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "2dcontext2",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Path2D",
    "uservoiceid": 6710770
  },
  {
    "name": "CSS Range Pseudo-classes",
    "category": "CSS",
    "link": "https://www.w3.org/TR/html5/disabled-elements.html#selector-in-range",
    "summary": ":in-range and :out-of-range pseudo-classes to match elements that are candidates for constraint validation, have range limitations, and are/are not suffering from underflow or overflow.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "10547"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/:in-range"
  },
  {
    "name": "CSS Mutability Pseudo-classes",
    "category": "CSS",
    "link": "https://www.w3.org/TR/html5/disabled-elements.html#selector-read-write",
    "summary": ":read-only and :read-write pseudo-classes to match elements which are considered user-alterable for the purposes of Selectors.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "10547"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/:read-only"
  },
  {
    "name": "a[download] attribute",
    "category": "File APIs",
    "link": "https://w3c.github.io/html/links.html#links-created-by-a-and-area-elements",
    "summary": "When used on an <a>, this attribute signifies that the resource it points to should be downloaded by the browser rather than navigating to it.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/a#attr-download",
    "id": 6473924464345088,
    "uservoiceid": 6261278
  },
  {
    "name": "Application Cache",
    "category": "Network / Connectivity",
    "link": "https://w3c.github.io/html/browsers.html#offline-web-applications",
    "summary": "Enables web pages to work without the user being connected to the internet",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Window/applicationCache",
    "id": 6192449487634432
  },
  {
    "name": "Audio tracks",
    "category": "Multimedia",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#media-resources-with-multiple-media-tracks",
    "summary": "Adds the ability to get information about multiple audio tracks, and switch between them using the AudioTrack.enabled attributes.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "id": 5748496434987008
  },
  {
    "name": "Video tracks",
    "category": "Multimedia",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#media-resources-with-multiple-media-tracks",
    "summary": "Adds the ability to get information about multiple video tracks, and switch between them using the VideoTrack.selected attributes.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "html51",
    "id": 5748496434987008,
    "uservoiceid": 6261284
  },
  {
    "name": "Blob",
    "category": "File APIs",
    "link": "https://dev.w3.org/2006/webapi/FileAPI/#dfn-Blob",
    "summary": "Allows you to construct Blobs directly (var blob = new Blob([\"1234\"], {type: 'text/plain'})). Blob() constructor also can take ArrayBufferView directly rather than constructing a blob with ArrayBuffer.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "fileapi",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Blob",
    "id": 5328783104016384
  },
  {
    "name": "ES6 Block bindings (let, const, function)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Allows developers to explicitly qualify access to variables within a block.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/let",
    "id": 5891733057437696
  },
  {
    "name": "Canvas",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/2dcontext/",
    "summary": "Provides an API to draw 2D graphics",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "2dcontext",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/canvas",
    "id": 5100084685438976
  },
  {
    "name": "Canvas focus ring",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/2dcontext/",
    "summary": "Adds APIs to the canvas 2D context that make it possible to draw a focus ring around a canvas path and notify the operating system of the bounding box of the focused object for accessibility.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14393"
    },
    "spec": "2dcontext",
    "msdn": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/drawFocusIfNeeded",
    "id": 6413769152397312,
    "uservoiceid": 6261287
  },
  {
    "name": "Compositing and Blending in Canvas 2D",
    "category": "Graphics",
    "link": "https://dev.w3.org/fxtf/compositing-1/#canvascompositingandblending",
    "summary": "The canvas 2d context has the globalCompositeOperation attribute that is used to set the current compositing and blending operator.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532"
    },
    "spec": "compositing-1",
    "msdn": "https://developer.mozilla.org/docs/Web/API/CanvasRenderingContext2D/globalCompositeOperation",
    "id": 6119881720201216,
    "uservoiceid": 6261290
  },
  {
    "name": "Content Security Policy",
    "category": "Security",
    "link": "https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html",
    "summary": "Allows you to create an allow list of sources of trusted content, and instructs the browser to only execute or render resources from those sources.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "csp3",
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy",
    "id": 5205088045891584,
    "uservoiceid": 6511917
  },
  {
    "name": "Content Security Policy Level 2",
    "category": "Security",
    "link": "https://www.w3.org/TR/CSP2/",
    "summary": "An evolution of the Content Security Policy specification, allowing developers to create a whitelist of sources of trusted content, and instructing the browser to only execute or render resources from those sources.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15002"
    },
    "spec": "csp2",
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Content-Security-Policy",
    "id": 4957003285790720,
    "uservoiceid": 9163354
  },
  {
    "name": "CSP Level 3 strict-dynamic source expression",
    "category": "Security",
    "link": "https://w3c.github.io/webappsec-csp/#strict-dynamic-usage",
    "summary": "Allows script loaded via a CSP2 nonce-based or hash-based whitelist to load other script, enabling developers and site administrators to reduce their reliance on whitelists and to tighten CSP implementations.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "id": 5633814718054400
  },
  {
    "name": "CSP upgrade-insecure-requests directive",
    "category": "Security",
    "link": "https://www.w3.org/TR/upgrade-insecure-requests/",
    "summary": "Allows a server to instruct the user agent to upgrade insecure requests via a Content-Security-Policy header. This directive is meant to make it even easier for a site administrator to move towards using all secure transports, while avoiding having to make massive updates to URLs in their web applications.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    }
  },
  {
    "name": "CSS calc()",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-values",
    "summary": "Method of allowing calculated values for length units, i.e. width: calc(100% - 3em)",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/calc",
    "id": 5765241438732288
  },
  {
    "name": "CSS Device Adaptation",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-device-adapt/",
    "summary": "The @viewport rule, in combination with media queries, enabled web developers to optimize the layout of sites and apps for different devices with minimal effort. It generalizes the viewport meta tag to CSS, while being much simpler to understand and without the quirks that exists with the meta tag.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "10",
      "flag": true
    },
    "spec": "css-deviceadapt-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/CSS_Device_Adaptation",
    "id": 4737164243894272
  },
  {
    "name": "CSS touch-action",
    "category": "User input",
    "link": "https://w3c.github.io/pointerevents/#the-touch-action-css-property",
    "summary": "New CSS property to enable websites to declaratively state how touches should be handled for purposes of scrolling and zooming.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "10",
      "ieUnprefixed": "11"
    },
    "spec": "pointerevents",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/touch-action",
    "id": 5912074022551552
  },
  {
    "name": "CSS Custom Properties (a.k.a. CSS Variables)",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css-variables/",
    "summary": "Introduces cascading variables as a new primitive value type that is accepted by all CSS properties, and custom properties for defining them.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15063"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/--*",
    "id": 6401356696911872,
    "uservoiceid": 6261292
  },
  {
    "name": "CSS Will Change",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-will-change/",
    "summary": "Adds a will-change CSS property, that can be used to signal that a particular property is likely to be changed in the future, or that an element's content is likely to change.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "css-will-change-1",
    "id": 5954199330226176,
    "uservoiceid": 6261294
  },
  {
    "name": "CSSOM View smooth scroll API",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/cssom-view",
    "summary": "Adds an optional argument to existing scroll APIs that specifies whether scrolling should be smooth. Also adds a CSS property for this.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "cssom-view-1",
    "id": 5812155903377408,
    "uservoiceid": 6261297
  },
  {
    "name": "Custom Elements",
    "category": "Web Components",
    "link": "https://www.w3.org/TR/custom-elements/",
    "summary": "Method for registering (creating) custom elements in script (often used in Web Components).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "custom-elements",
    "id": 4696261944934400,
    "uservoiceid": 6261298
  },
  {
    "name": "Device Motion",
    "category": "Device",
    "link": "https://w3c.github.io/deviceorientation/spec-source-orientation.html#devicemotion",
    "summary": "Provides access to device's physical motion.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "orientation-event",
    "msdn": "https://developer.mozilla.org/docs/Web/API/DeviceMotionEvent",
    "id": 5556931766779904
  },
  {
    "name": "Device Orientation",
    "category": "Device",
    "link": "https://w3c.github.io/deviceorientation/spec-source-orientation.html#deviceorientation",
    "summary": "Provides access to device's physical orientation",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "orientation-event",
    "msdn": "https://developer.mozilla.org/docs/Web/API/DeviceOrientationEvent",
    "id": 5874690627207168
  },
  {
    "name": "devicePixelRatio on zoom",
    "category": "Device",
    "link": "https://dev.w3.org/csswg/cssom-view/#dom-window-devicepixelratio",
    "summary": "Update window.devicePixelRatio on full page zoom so that it accurately portrays the ratio between css and device pixels.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "cssom-view-1",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Window/devicePixelRatio",
    "id": 5269993591668736
  },
  {
    "name": "DOM3 Keyboard Events",
    "category": "User input",
    "link": "https://www.w3.org/TR/DOM-Level-3-Events/",
    "summary": "KeyboardEvent: keydown, keyup, keypress",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "uievents",
    "msdn": "https://developer.mozilla.org/docs/Web/API/KeyboardEvent",
    "id": 4748790720364544
  },
  {
    "name": "DOM3 mouseenter & mouseleave Events",
    "category": "User input",
    "link": "https://dvcs.w3.org/hg/pointerevents/raw-file/tip/pointerEvents.html#the-touch-action-css-property",
    "summary": "DOM event analog of CSS :hover psuedo-selector that fires as the mouse enters and exits the bounding box of an element (including its children).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "8"
    },
    "spec": "pointerevents",
    "msdn": "https://developer.mozilla.org/docs/Web/Events/mouseenter",
    "id": 4889528208719872
  },
  {
    "name": "DOM3 Wheel Events",
    "category": "User input",
    "link": "https://w3c.github.io/uievents/#events-wheelevents",
    "summary": "Implementation of the standard DOM Level 3 WheelEvent for mouse wheel rotation.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "uievents",
    "msdn": "https://developer.mozilla.org/docs/Web/API/WheelEvent",
    "id": 5388191091654656
  },
  {
    "name": "Drag and Drop Directories",
    "category": "File APIs",
    "link": "https://wiki.whatwg.org/wiki/DragAndDropEntries",
    "summary": "Allows dragging and dropping entire folders using HTML5 Drag and Drop. Extends the DataTransferItem with a method to get a FileEntry/DirectoryEntry.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "id": 5733953138851840,
    "uservoiceid": 6261304
  },
  {
    "name": "Encrypted Media Extensions",
    "category": "Multimedia",
    "link": "https://w3c.github.io/encrypted-media/",
    "summary": "Defines a common API that may be used to discover, select and interact with such systems as well as with simpler content encryption systems.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "11",
      "ieUnprefixed": "10240"
    },
    "spec": "encrypted-media",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Encrypted_Media_Extensions_API",
    "id": 6578378068983808
  },
  {
    "name": "Exclusions",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-exclusions/",
    "summary": "Define areas inline content should avoid, and how inline content should wrap around them.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "10"
    },
    "spec": "css-exclusions-1",
    "msdn": "https://msdn.microsoft.com/library/hh772711",
    "id": 6296903092273152
  },
  {
    "name": "Filters",
    "category": "CSS",
    "link": "https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/Overview.html",
    "summary": "Apply filter effects to arbitrary DOM elements.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10586"
    },
    "spec": "filter-effects-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/filter",
    "id": 5822463824887808,
    "uservoiceid": 6261306
  },
  {
    "name": "Flexbox",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-flexbox/",
    "summary": "A CSS box model optimized for user interface design. The children of a flex container can be laid out in any direction and can \"flex\" their sizes to fill unused space and  avoid overflowing the parent.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "10",
      "ieUnprefixed": "11"
    },
    "spec": "css-flexbox-1",
    "msdn": "https://developer.mozilla.org/docs/Learn/CSS/CSS_layout/Flexbox",
    "id": 4837301406400512
  },
  {
    "name": "Fullscreen API",
    "category": "Misc",
    "link": "https://dvcs.w3.org/hg/fullscreen/raw-file/tip/Overview.html",
    "summary": "Programmatically instruct content on the page to be presented in the browser's full screen (kiosk) mode. Starting in 14.14393, this is prefixed in Edge due to compatibility issues. We are working with other browser vendors to coordinate switching to an unprefixed implementation in the future.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "11"
    },
    "spec": "whatwg-fullscreen",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Fullscreen_API",
    "id": 5259513871466496
  },
  {
    "name": "GamePad API",
    "category": "User input",
    "link": "https://w3c.github.io/gamepad/",
    "summary": "Gives JS access to a game controller via USB.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "gamepad",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Gamepad_API",
    "id": 5118776383111168,
    "uservoiceid": 6509110
  },
  {
    "name": "Generated Content for Paged Media",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-gcpm/",
    "summary": "CSS properties helpful for printed publication.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "css-gcpm-3",
    "id": 5400251359821824,
    "uservoiceid": 6261314
  },
  {
    "name": "Geolocation",
    "category": "Device",
    "link": "https://www.w3.org/TR/geolocation-API/",
    "summary": "Provides access to device's physical location",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "geolocation-api",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Geolocation",
    "id": 6348855016685568
  },
  {
    "name": "Media Capture and Streams",
    "category": "Multimedia",
    "link": "https://w3c.github.io/mediacapture-main/getusermedia.html",
    "summary": "Provides access to the user's local audio and video input/output devices (getUserMedia API).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "html-media-capture",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Media_Streams_API",
    "id": 6067380039974912,
    "uservoiceid": 6573558
  },
  {
    "name": "Gradients",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-images/",
    "summary": "Gradients provide a method to, over a customizable amount of space, transition from one color to another.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "css-images-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/gradient",
    "id": 5785905063264256
  },
  {
    "name": "CSS Grid Layout",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-grid-layout/",
    "summary": "A two-dimensional grid-based layout system, optimized for user interface design.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "10",
      "ieUnprefixed": "16299"
    },
    "spec": "css-grid-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/CSS_Grid_Layout",
    "id": 4589636412243968,
    "uservoiceid": 6514853
  },
  {
    "name": "HTML Form HTTP Extensions",
    "category": "Misc",
    "link": "https://www.w3.org/TR/form-http-extensions/",
    "summary": "An addendum to HTML5 forms extending the abilities of configuring HTTP requests through HTML markup.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "uservoiceid": 8157372,
    "impl_status_chrome": "No active development",
    "ff_views": {
      "text": "No public signals",
      "value": 5
    },
    "safari_views": {
      "text": "No public signals",
      "value": 5
    }
  },
  {
    "name": "HTML Imports",
    "category": "Web Components",
    "link": "https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/imports/index.html",
    "summary": "Import HTML documents into other HTML documents (often used in Web Components).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "html-imports",
    "id": 5144752345317376,
    "uservoiceid": 6261318
  },
  {
    "name": "HTTP Client Hints",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/draft-grigorik-http-client-hints",
    "summary": "Header for proactive content negotiation; just as the Accept header allowed clients to indicate what formats they prefer, Client Hints allow clients to indicate a list of device and agent specific preferences.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "id": 5504430086553600,
    "uservoiceid": 6261321
  },
  {
    "name": "HTTP Strict Transport Security (HSTS)",
    "category": "Security",
    "link": "https://tools.ietf.org/html/rfc6797",
    "summary": "Header to inform the browser to always request a given domain over SSL, reducing MITM attack surface area.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Strict-Transport-Security",
    "id": 4941480133132288
  },
  {
    "name": "SPDY/3",
    "category": "Network / Connectivity",
    "link": "https://www.chromium.org/spdy/spdy-protocol",
    "summary": "A faster protocol for transporting web content.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Deprecated",
      "ieUnprefixed": "11"
    },
    "id": 5152586365665280
  },
  {
    "name": "HTTP/2",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/rfc7540",
    "summary": "A faster protocol for transporting web content standardized by the IETF.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP",
    "id": 5152586365665280
  },
  {
    "name": "iframe[sandbox] attribute",
    "category": "Misc",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#element-attrdef-iframe-sandbox",
    "summary": "Method of running external site pages with reduced privileges (i.e. no JavaScript) in iframes (<iframe sandbox=\"allow-same-origin allow-forms\" src=\"...\"></iframe>)",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/iframe#attr-sandbox",
    "id": 5715536319086592
  },
  {
    "name": "iframe[seamless] attribute",
    "category": "Misc",
    "link": "https://www.w3.org/TR/2016/WD-html51-20160310/semantics-embedded-content.html#element-attrdef-iframe-seamless",
    "summary": "The seamless attribute is used to embed an <iframe> in the calling page without scrollbars or borders (e.g. seamlessly) and with the parent document's styles applying to the embedded seamless iframe.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "html51",
    "id": 6630329993396224,
    "uservoiceid": 6261330
  },
  {
    "name": "iframe[srcdoc] attribute",
    "category": "Misc",
    "link": "https://www.w3.org/TR/html5/embedded-content-0.html#attr-iframe-srcdoc",
    "summary": "Gives the content of an iframe as a src context to embed (e.g. <iframe seamless srcdoc=\"<b>Hello World</b>\"></iframe>).",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "html51",
    "id": 5222955109842944,
    "uservoiceid": 6261334
  },
  {
    "name": "IME API",
    "category": "User input",
    "link": "https://w3c.github.io/ime-api/",
    "summary": "Provides Web applications with scripted access to an IME (input-method editor).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "11"
    },
    "spec": "ime-api",
    "id": 6366722080636928
  },
  {
    "name": "IndexedDB",
    "category": "Offline / Storage",
    "link": "https://www.w3.org/TR/IndexedDB/",
    "summary": "An asynchronous client-side storage API offering fast access to large amounts of structured data",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "indexeddb",
    "msdn": "https://developer.mozilla.org/docs/Glossary/IndexedDB",
    "id": 6507459568992256
  },
  {
    "name": "IndexedDB Arrays and MultiEntry Support",
    "category": "Offline / Storage",
    "link": "https://www.w3.org/TR/IndexedDB/#dfn-multientry",
    "summary": "Extends the existing IndexedDB implementation with support for compound keys, indexed array values, and multiEntry.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "indexeddb",
    "uservoiceid": 8437039
  },
  {
    "name": "WebGL Instancing Extension",
    "category": "Graphics",
    "link": "https://www.opengl.org/wiki/Vertex_Rendering#Instancing",
    "summary": "A way to use the GPU to quickly draw a lot of copies of a single object. In some scenes (like a forest with a lot of trees) it is a great way to get a huge performance improvement. Requires a compatible GPU.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/WebGL_API"
  },
  {
    "name": "Map (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Map objects are simple key/value maps.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "es6",
    "msdn": "https://msdn.microsoft.com/library/dn263029",
    "id": 4818609708728320
  },
  {
    "name": "Masks",
    "category": "CSS",
    "link": "https://dev.w3.org/fxtf/css-masking-1/",
    "summary": "Allows hiding of portions of a visible elements.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "css-masking-1",
    "msdn": "https://msdn.microsoft.com/library/ff972267.aspx",
    "id": 5381559662149632,
    "uservoiceid": 6261341
  },
  {
    "name": "matchMedia",
    "category": "DOM",
    "link": "https://dev.w3.org/csswg/cssom-view/#widl-Window-matchMedia-MediaQueryList-DOMString-query",
    "summary": "API for testing if a given media query will apply.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "cssom-view-1",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Window/matchMedia",
    "id": 4677872220372992
  },
  {
    "name": "MathML",
    "category": "Misc",
    "link": "https://www.w3.org/TR/MathML3/",
    "summary": "An application of XML for describing mathematical notations and capturing both its structure and content.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "id": 5240822173794304,
    "uservoiceid": 6508572
  },
  {
    "name": "Media Queries: resolution feature",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-mediaqueries/#resolution",
    "summary": "Allows to query the device pixel count per CSS unit",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/Media_Queries",
    "id": 5944509615570944
  },
  {
    "name": "Media Source Extensions",
    "category": "Multimedia",
    "link": "https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html",
    "summary": "Allows appending data to an <audio>/<video> element.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "media-source",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Media_Source_Extensions_API",
    "id": 4563797888991232
  },
  {
    "name": "MediaRecorder",
    "category": "Multimedia",
    "link": "https://www.w3.org/TR/mediastream-recording/",
    "summary": "Encode audio and video streams in the browser.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "mediastream-recording",
    "id": 5929649028726784,
    "uservoiceid": 6261360
  },
  {
    "name": "Microdata",
    "category": "Misc",
    "link": "https://www.w3.org/TR/microdata/",
    "summary": "Microdata is used to nest semantics within existing content on web pages.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "id": 6428569609699328,
    "uservoiceid": 6508451
  },
  {
    "name": "CSS Transforms - preserve-3d",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-transforms/#transform-style-property",
    "summary": "Augments existing CSS 3d transforms by facilitating the construction of complex 3d scenes.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "css-transforms-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/transform-style#Values",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "uservoiceid": 6510941
  },
  {
    "name": "mix-blend-mode",
    "category": "CSS",
    "link": "https://drafts.fxtf.org/compositing-1/",
    "summary": "Provides a way to blend an HTML or SVG element with its backdrop",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "compositing-1",
    "id": 6362616360337408,
    "uservoiceid": 6263617
  },
  {
    "name": "background-blend-mode",
    "category": "CSS",
    "link": "https://drafts.fxtf.org/compositing-1/",
    "summary": "Specifies the blending mode used for each background layer",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "compositing-1",
    "id": 5768037999312896,
    "uservoiceid": 9434463
  },
  {
    "name": "Cross-Domain Font Loading",
    "category": "CSS",
    "link": "https://www.w3.org/TR/WOFF/",
    "summary": "Increases interoperability with the web by relaxing domain and licensing metadata restrictions for EOT, WOFF, and TrueType fonts. Development work for IE is currently for Windows Phone only.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "In Development"
    },
    "impl_status_chrome": "Removed",
    "safari_views": {
      "text": "Shipped",
      "value": 1
    }
  },
  {
    "name": "Multi-column (full support)",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-multicol/",
    "summary": "Allows content to be flowed into multiple columns with a gap and a rule between them using CSS.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "css-multicol-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/CSS_Columns",
    "id": 6526151266664448
  },
  {
    "name": "Mutation Observers",
    "category": "DOM",
    "link": "https://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#mutation-observers",
    "summary": "Provides notifications when DOM nodes are rearranged or modified.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "whatwg-dom",
    "msdn": "https://developer.mozilla.org/docs/Web/API/MutationObserver",
    "id": 5021194726146048
  },
  {
    "name": "Navigation Timing API",
    "category": "Performance",
    "link": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview.html",
    "summary": "Allows web applications to access timing information related to navigation and elements.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "navigation-timing-2",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Navigation_timing_API",
    "id": 5584144679567360
  },
  {
    "name": "Page Visibility API",
    "category": "DOM",
    "link": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PageVisibility/Overview.html",
    "summary": "Provides an API to ask whether the current tab is visible or not. If so, you might want to throttle back action or set an idle state.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "page-visibility",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Page_Visibility_API",
    "id": 5689697795833856
  },
  {
    "name": "Pointer Events",
    "category": "User input",
    "link": "https://www.w3.org/TR/pointerevents/",
    "summary": "Unified pointer input API (e.g. mouse, pen, touch input) which addresses several existing problems (especially on touchscreen laptops) and provides future extensibility.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "10",
      "ieUnprefixed": "11"
    },
    "spec": "pointerevents",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Pointer_events",
    "id": 4504699138998272
  },
  {
    "name": "Pointer Lock (Mouse Lock)",
    "category": "User input",
    "link": "https://dvcs.w3.org/hg/pointerlock/raw-file/default/index.html",
    "summary": "Gives access to raw mouse movement, locks the target of mouse events to a single element, eliminates limits of how far mouse movement can go in a single direction, and removes the cursor from view. Obvious use cases are for first person or real time strategy games.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532"
    },
    "shipped_opera_milestone": true,
    "spec": "pointerlock",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Pointer_Lock_API",
    "id": 6753200417800192
  },
  {
    "name": "position: sticky",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-position/#sticky-positioning",
    "summary": "position: sticky is a new way to position elements and is conceptually similar to position: fixed. The difference is that a stickily positioned element behaves like position: relative within its parent, until a given offset threshold is met.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "css-position-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/position#Values",
    "id": 6190250464378880,
    "uservoiceid": 6263621
  },
  {
    "name": "postMessage",
    "category": "Realtime / Communication",
    "link": "https://www.w3.org/TR/webmessaging/",
    "summary": "Safely enables cross-origin communication.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "8"
    },
    "spec": "webmessaging",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Window/postMessage",
    "id": 4786174115708928
  },
  {
    "name": "Quota Management API",
    "category": "Multimedia",
    "link": "https://www.w3.org/TR/quota-api/",
    "summary": "This API can be used to check how much quota an app/origin is using.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "spec": "quota-api",
    "id": 6218562888794112,
    "uservoiceid": 6508438
  },
  {
    "name": "Regions",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-regions/",
    "summary": "Magazine-like content flow into specified regions.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "10",
      "priority": "Medium"
    },
    "spec": "css-regions-1",
    "id": 5655612935372800
  },
  {
    "name": "requestAnimationFrame()",
    "category": "Graphics",
    "link": "https://dvcs.w3.org/hg/webperf/raw-file/default/specs/RequestAnimationFrame/Overview.html",
    "summary": "Offload animation repainting to browser for optimized performance. You should call this method whenever you're ready to update your animation onscreen. This will request that your animation function be called before the browser performs the next repaint.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/API/window/requestAnimationFrame",
    "id": 5233400470306816
  },
  {
    "name": "Resource Timing API",
    "category": "Performance",
    "link": "https://www.w3.org/TR/resource-timing/",
    "summary": "Allows web applications to access timing information related to HTML elements.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "resource-timing",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Resource_Timing_API",
    "id": 5796350423728128
  },
  {
    "name": "Service Worker",
    "category": "Offline / Storage",
    "link": "https://w3c.github.io/ServiceWorker/",
    "summary": "ServiceWorkers (formerly Navigation Controllers) are a new system that provides event-driven scripts that run independent of web pages. They are similar to SharedWorkers except that their lifetime is different and they have access to domain-wide events such as network fetches.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "service-workers",
    "id": 6561526227927040,
    "uservoiceid": 6263630
  },
  {
    "name": "Set (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Set objects let you store unique values of any type, whether primitive values or object references.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set",
    "id": 4916191365693440
  },
  {
    "name": "Streams API",
    "category": "File APIs",
    "link": "https://streams.spec.whatwg.org/",
    "summary": "An API for representing binary data in web applications as a Stream object.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/Streams_API",
    "id": 6605041225957376
  },
  {
    "name": "Streams API: WritableStream",
    "category": "File APIs",
    "link": "https://streams.spec.whatwg.org/",
    "summary": "A writable stream represents a destination for data, into which you can write.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/WritableStream",
    "id": 5928498656968704
  },
  {
    "name": "Subpixel font scaling",
    "category": "Graphics",
    "summary": "Allow sub-css-pixel font-sizes and thus smooth font scaling.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "id": 6259163214643200
  },
  {
    "name": "SVG2",
    "category": "Graphics",
    "link": "https://svgwg.org/svg2-draft/single-page.html",
    "summary": "Implement the new SVG2 features.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "svg2",
    "id": 5760616295825408,
    "uservoiceid": 6263636
  },
  {
    "name": "Support dataset property on SVGElement",
    "category": "DOM",
    "link": "https://svgwg.org/svg2-draft/types.html#InterfaceSVGElement",
    "summary": "The dataset IDL attribute provides access to custom data attributes on SVG elements. Its behavior is the same as the corresponding IDL member on the HTMLElement interface.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "svg2",
    "id": 5727911176830976,
    "uservoiceid": 257854
  },
  {
    "name": "TLS 1.2",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/rfc5246",
    "summary": "The latest version of the Transport Layer Security (TLS) protocol. Allows for data/message confidentiality, and message authentication codes for message integrity and as a by-product message authentication.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "8"
    },
    "id": 5197666342404096
  },
  {
    "name": "TLS 1.3",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/draft-ietf-tls-tls13",
    "summary": "Transport Layer Security (TLS) protocol version 1.3 allows faster and more secure connection compared to TLS 1.2 by reducing round trip number, and removing legacy vulnerable cryptography features.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "id": 5712755738804224,
    "uservoiceid": 17379247
  },
  {
    "name": "Track element",
    "category": "Multimedia",
    "link": "https://www.w3.org/TR/html5/embedded-content-0.html#the-track-element",
    "summary": "Add subtitles, captions, screen reader descriptions, chapters and other types of timed metadata to video and audio. ",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/track",
    "id": 6719115557339136
  },
  {
    "name": "Transforms",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-transforms/",
    "summary": "Enables changing the position of content in 3D space without disrupting the normal flow. See also preserve-3d.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "9",
      "ieUnprefixed": "10"
    },
    "spec": "css-transforms-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/CSS_Transforms",
    "id": 6437640580628480
  },
  {
    "name": "Typed Arrays (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-typedarray-objects",
    "summary": "Buffers for holding binary data and working with WebGL & Audio API: ArrayBuffer, Float32Array , Int16Array, Uint8Array, etc.)",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/TypedArray",
    "id": 5135818813341696
  },
  {
    "name": "UIEvents - Keyboard Query APIs",
    "category": "User input",
    "link": "https://www.w3.org/TR/uievents/",
    "summary": "Identify the physical key being pressed; Query key from layout.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "ieUnprefixed": "Medium"
    },
    "spec": "uievents",
    "id": 5593215650496512,
    "uservoiceid": 6508637
  },
  {
    "name": "URL API",
    "category": "DOM",
    "link": "https://url.spec.whatwg.org/",
    "summary": "Expose constructible URL objects that can be manipulated and combined.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "whatwg-url",
    "msdn": "https://developer.mozilla.org/docs/Web/API/URL",
    "id": 5675829346435072,
    "uservoiceid": 16856668
  },
  {
    "name": "URLSearchParams",
    "category": "DOM",
    "link": "https://url.spec.whatwg.org/",
    "summary": "Allows developers to manipulate the search params of a URL.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "whatwg-url",
    "id": 5632984866619392,
    "uservoiceid": 6263638
  },
  {
    "name": "User Timing API",
    "category": "Performance",
    "link": "https://www.w3.org/TR/user-timing/",
    "summary": "Helps web developers measure the performance of their applications by giving them access to high precision timestamps.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "user-timing",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Performance",
    "id": 5066549580791808
  },
  {
    "name": "Vibration API",
    "category": "Device",
    "link": "https://www.w3.org/TR/vibration/",
    "summary": "This specification defines an API that provides access to the vibration mechanism of the hosting device. Vibration is a form of tactile feedback. ",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "vibration",
    "id": 5698768766763008,
    "uservoiceid": 6263645
  },
  {
    "name": "WeakMap (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "WeakMaps are key/value maps in which keys are objects.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "es6",
    "msdn": "https://msdn.microsoft.com/library/dn251546",
    "id": 4572868859920384
  },
  {
    "name": "Web Animations JavaScript API",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/web-animations/",
    "summary": "A unified model for supporting animation and synchronization on the Web platform.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "web-animations-1",
    "id": 4854343836631040,
    "uservoiceid": 6263650
  },
  {
    "name": "Web Crypto API",
    "category": "Security",
    "link": "https://dvcs.w3.org/hg/webcrypto-api/raw-file/tip/spec/Overview.html",
    "summary": "JavaScript bindings for cryptographic operations. Note: we are looking to update our current implementation to the latest W3C Last Call Working Draft specification.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "11"
    },
    "spec": "webcryptoapi",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Web_Crypto_API",
    "id": 5030265697075200
  },
  {
    "name": "Web MIDI API",
    "category": "Multimedia",
    "link": "https://webaudio.github.io/web-midi-api/",
    "summary": "Defines an API supporting the MIDI protocol, enabling web applications to enumerate and select MIDI input and output devices on the client system and send and receive MIDI messages.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "spec": "webmidi",
    "id": 4923613069180928,
    "uservoiceid": 6508429
  },
  {
    "name": "Web Notifications",
    "category": "Misc",
    "link": "https://www.w3.org/TR/notifications/",
    "summary": "An API for displaying simple notifications to the user.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14342"
    },
    "spec": "notifications",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Notifications_API",
    "id": 5064350557536256,
    "uservoiceid": 6263658
  },
  {
    "name": "Web Speech API (Speech Recognition)",
    "category": "Multimedia",
    "link": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html",
    "summary": "Enables web developers to incorporate speech recognition into their web pages.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "speech-api",
    "id": 5908775487668224,
    "uservoiceid": 6263660
  },
  {
    "name": "Web Speech API (synthesis)",
    "category": "Multimedia",
    "link": "https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html",
    "summary": "Enables web developers to incorporate speech synthesis into their web pages. ",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "spec": "speech-api",
    "msdn": "https://developer.mozilla.org/docs/Web/API/SpeechSynthesis",
    "id": 4782875580825600,
    "uservoiceid": 6263662
  },
  {
    "name": "Web SQL Database",
    "category": "Offline / Storage",
    "link": "https://www.w3.org/TR/webdatabase/",
    "summary": "API exposing an SQLite database",
    "standardStatus": "No public standards discussion",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "spec": "webdatabase",
    "id": 6330987952734208,
    "uservoiceid": 6508421
  },
  {
    "name": "Web Storage",
    "category": "Offline / Storage",
    "link": "https://www.w3.org/TR/webstorage/",
    "summary": "Refers to both localStorage and sessionStorage",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "8"
    },
    "spec": "webstorage",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Web_Storage_API",
    "id": 5345825534246912
  },
  {
    "name": "WebGL  (Canvas 3D)",
    "category": "Graphics",
    "link": "https://www.khronos.org/registry/webgl/specs/latest/",
    "summary": "3D rendering via the <canvas> element. ",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "11"
    },
    "spec": "webgl",
    "msdn": "https://msdn.microsoft.com/library/bg182648",
    "id": 6049512976023552
  },
  {
    "name": "WebGL 2.0",
    "category": "Graphics",
    "link": "https://www.khronos.org/registry/webgl/specs/latest/2.0/",
    "summary": "An update to WebGL, based on OpenGL ES 3.0",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "webgl2",
    "demo": "https://www.youtube.com/watch?v=2v6iLpY7j5M",
    "id": 6694359164518400,
    "uservoiceid": 6517037
  },
  {
    "name": "APNG image format",
    "category": "Graphics",
    "link": "https://wiki.mozilla.org/APNG_Specification",
    "summary": "APNG is an extension of the PNG format, adding support for animated images.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "id": 6691520493125632,
    "uservoiceid": 6513393
  },
  {
    "name": "WebP image format",
    "category": "Graphics",
    "link": "https://developers.google.com/speed/webp/docs/riff_container",
    "summary": "WebP is an image format that provides lossless and lossy compression for images on the web. ",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "id": 6471725441089536,
    "uservoiceid": 6508417
  },
  {
    "name": "WebRTC – WebRTC v1.0 API",
    "category": "Realtime / Communication",
    "link": "https://w3c.github.io/webrtc-pc/",
    "summary": "Real-time communication in the browser. See also \"Web RTC - Object RTC API\". At this time, RTC features are supported only on desktop platform.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15019"
    },
    "spec": "webrtc",
    "msdn": "https://developer.mozilla.org/docs/Web/API/WebRTC_API",
    "id": 6612462929444864,
    "uservoiceid": 6508336
  },
  {
    "name": "WebRTC – Object RTC API",
    "category": "Realtime / Communication",
    "link": "https://www.w3.org/community/ortc/",
    "summary": "Enables mobile endpoints to talk to servers and web browsers with Real-Time Communications (ORTC) capabilities via native and simple JavaScript APIs. At this time, RTC features are supported only on desktop platform.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "spec": "ortc",
    "msdn": "https://developer.microsoft.com/microsoft-edge/platform/documentation/dev-guide/realtime-communication/object-rtc-api/",
    "impl_status_chrome": "No active development",
    "ff_views": {
      "text": "No public signals",
      "value": 5
    },
    "safari_views": {
      "text": "No public signals",
      "value": 5
    },
    "uservoiceid": 6263666
  },
  {
    "name": "WebSocket",
    "category": "Network / Connectivity",
    "link": "https://html.spec.whatwg.org/multipage/comms.html#network",
    "summary": "The WebSockets JavaScript API provides a simple API for bi-directional communication with web servers. The WebSocket network protocol enables low overhead bi-directional communication with web servers over a persistent TCP connection.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/API/WebSocket",
    "id": 6555138000945152
  },
  {
    "name": "XMLHttpRequest timeout",
    "category": "Network / Connectivity",
    "link": "https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html",
    "summary": "Exposing the XHR timeout property and sending corresponding events such as ontimeout.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "xhr",
    "msdn": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest/timeout",
    "id": 6290890138058752
  },
  {
    "name": "XMLHttpRequest.responseURL attribute",
    "category": "Network / Connectivity",
    "link": "https://xhr.spec.whatwg.org/#the-responseurl-attribute",
    "summary": "Returns the serialized URL of the response (with the exclude fragment flag set) or returns the empty string if the URL is null.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14362"
    },
    "spec": "xhr",
    "msdn": "https://developer.mozilla.org/docs/Web/API/XMLHttpRequest#Properties"
  },
  {
    "name": "Arrow function (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "The arrow (=>) provides a shorthand for the function keyword with lexical 'this' binding.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "id": 5047308127305728,
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/Arrow_functions",
    "uservoiceid": 6512181
  },
  {
    "name": "Box Alignment",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-align/",
    "summary": "CSS properties for aligning boxes within their container. Allows for true vertical centering among other features.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "css-align-3",
    "msdn": "https://msdn.microsoft.com/library/bg124109.aspx#setting_flexbox_alignment_",
    "id": 6173208034148352,
    "uservoiceid": 6263671
  },
  {
    "name": "CSS filter() image function",
    "category": "CSS",
    "link": "https://www.w3.org/TR/filter-effects/#FilterCSSImageValue",
    "summary": "The function allows filtering an CSS input image with a set of filter functions. The used filter functions are the same as for the CSS filter property. The filter() function can be animated as well.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "filter-effects-1",
    "id": 5425136400334848,
    "uservoiceid": 6263676
  },
  {
    "name": "CSS filter(url) using SVG elements",
    "category": "CSS",
    "link": "https://www.w3.org/TR/filter-effects/#typedef-url",
    "summary": "The function allows filtering using SVG Filter elements as the filter function.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "filter-effects-1",
    "id": 5822463824887808
  },
  {
    "name": "Default parameter (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Allows formal parameters to be initialized with default values if no value is passed.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14342"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/Default_parameters",
    "id": 5275456790069248,
    "uservoiceid": 6512273
  },
  {
    "name": "Destructuring (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Destructuring assignment allows extracting data from arrays or objects using a syntax that mirrors array and object literals.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14393",
      "flag": false
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment",
    "id": 4588790303686656,
    "uservoiceid": 6263681
  },
  {
    "name": "Rest parameters (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Allows representation of an indefinite number of arguments as an array.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Functions/rest_parameters",
    "id": 5937087912083456
  },
  {
    "name": "Ambient Light Sensor API",
    "category": "Device",
    "link": "https://www.w3.org/TR/ambient-light/",
    "summary": "Ambient Light Event API which is a handy way to make a web page or web app aware of any change in light intensity.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "10586"
    },
    "spec": "ambient-light",
    "id": 5298357018820608,
    "uservoiceid": 6263685
  },
  {
    "name": "Battery Status API",
    "category": "Device",
    "link": "https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html",
    "summary": "Allows access to see the battery level of the device's battery",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "battery-status",
    "id": 4537134732017664,
    "uservoiceid": 6263689
  },
  {
    "name": "Push API",
    "category": "Realtime / Communication",
    "link": "https://w3c.github.io/push-api/",
    "summary": "Provides webapps with scripted access to server-sent notifications.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "push-api",
    "id": 5416033485586432,
    "uservoiceid": 6263693
  },
  {
    "name": "Subresource Integrity",
    "category": "Security",
    "link": "https://w3c.github.io/webappsec/specs/subresourceintegrity/",
    "summary": "Subresource Integrity defines a mechanism by which user agents may verify that a fetched resource has been delivered without unexpected manipulation. In a nutshell, metadata inlined into HTML elements allows the browser to determine whether the resource that was downloaded matches the resource the page's author expected to download.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Preview Release",
      "iePrefixed": "16257",
      "flag": true
    },
    "spec": "sri",
    "id": 6183089948590080,
    "uservoiceid": 6263699
  },
  {
    "name": "CSS Intrinsic Sizing",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css3-sizing/",
    "summary": "Extends the CSS sizing properties with keywords that represent content-based \"intrinsic\" sizes and context-based \"extrinsic\" sizes, allowing CSS to more easily describe boxes that fit their content or fit into a particular layout context.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "css-sizing-3",
    "id": 5901353784180736,
    "uservoiceid": 6263702
  },
  {
    "name": "CSS font-stretch",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-fonts/#propdef-font-stretch",
    "summary": "Add support for the CSS font-stretch property.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "9"
    },
    "spec": "css-fonts-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/font-stretch",
    "id": 4598830058176512
  },
  {
    "name": "Canvas2D text decoration",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/2dcontext/#textmetrics",
    "summary": "Add a textDecoration attribute to canvas 2D contexts, behavior similar to existing \"font\" attribute: It's a DOMString, parsed the same way as corresponding CSS property (text-decoration).",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "2dcontext",
    "id": 5663034638860288,
    "uservoiceid": 6263706
  },
  {
    "name": "ES6 Iterators (i.e. the for-of feature)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Iterates over iterable objects (including arrays, array-like objects, iterators and generators), invoking a custom iteration hook with statements to be executed for the value of each distinct property.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterable_protocol",
    "id": 4696563918045184
  },
  {
    "name": "Network Error Logging",
    "category": "Performance",
    "link": "https://wicg.github.io/network-error-logging/",
    "summary": "This specification defines an interface to store and retrieve error data related to the previous navigations of a document.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "id": 5391249376804864,
    "uservoiceid": 6263712
  },
  {
    "name": "Shapes",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css-shapes/",
    "summary": "Define arbitrary shapes inside and around which inline content can flow.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "css-shapes-1",
    "id": 5163890719588352,
    "uservoiceid": 6263716
  },
  {
    "name": "Symbols (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Allows properties to be added to existing objects without the possibility of interference with the existing properties, unintended visibility, or with other uncoordinated additions by any other code.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "id": 6042091272536064
  },
  {
    "name": "WebGL Shared Resources",
    "category": "Graphics",
    "link": "https://www.khronos.org/registry/webgl/extensions/WEBGL_shared_resources/",
    "summary": "Allow sharing resources between 2 or more WebGL contexts",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "spec": "webgl",
    "id": 5486563022602240,
    "uservoiceid": 6263719
  },
  {
    "name": "inputmode",
    "category": "User input",
    "link": "https://w3c.github.io/html/sec-forms.html#input-modalities-the-inputmode-attribute",
    "summary": "The inputmode content attribute is an enumerated attribute that specifies what kind of input mechanism would be most helpful for users entering content into the form control.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "html51",
    "id": 6225984592281600,
    "uservoiceid": 6263729
  },
  {
    "name": "Object.observe()",
    "category": "JavaScript",
    "link": "https://github.com/arv/ecmascript-object-observe",
    "summary": "Observe changes to JS objects.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "spec": "es6",
    "id": 6147094632988672,
    "uservoiceid": 6263750
  },
  {
    "name": "Shadow DOM",
    "category": "Web Components",
    "link": "https://w3c.github.io/webcomponents/spec/shadow/",
    "summary": "Enables DOM tree encapsulation. Without it, widgets may inadvertently break pages by using conflicting CSS selectors, class or id names, or JavaScript variables (often used in Web Components).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "High"
    },
    "spec": "shadow-dom",
    "id": 4667415417847808,
    "uservoiceid": 6263785
  },
  {
    "name": "Web Audio API",
    "category": "Multimedia",
    "link": "https://webaudio.github.io/web-audio-api/",
    "summary": "A high-level JavaScript API for processing and synthesizing audio in web applications",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "webaudio",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Web_Audio_API",
    "id": 6261718720184320,
    "uservoiceid": 6557946
  },
  {
    "name": "object-fit and object-position",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-images-3/#the-object-fit",
    "summary": "CSS properties that control the position and size of replaced content within the content box",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "css-images-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/object-fit",
    "id": 5302669702856704,
    "uservoiceid": 6263790
  },
  {
    "name": "Conditional Rules",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-conditional/",
    "summary": "Support for the @supports at-rule and the \"window.CSS.supports()\" API",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "css-conditional-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/@supports",
    "id": 4993981813358592,
    "uservoiceid": 6517589
  },
  {
    "name": "Generators (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "A generator is a special type of function that works as a factory for iterators.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10586"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Generator",
    "id": 4959347197083648,
    "uservoiceid": 6263797
  },
  {
    "name": "Custom filters (shaders)",
    "category": "CSS",
    "link": "https://www.w3.org/Graphics/fx/wiki/CSS_Shaders_Security",
    "summary": "Filter effects are a way of processing an element’s rendering before it is displayed in the document.",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "id": 5838406743490560,
    "uservoiceid": 6508326
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  {
    "name": "High Resolution Time",
    "category": "Performance",
    "link": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/HighResolutionTime/Overview.html",
    "summary": "Enables reliable, high-resolution timing of client-side performance.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "hr-time-2",
    "id": 5349124069130240
  },
  {
    "name": "Scoped Styles",
    "category": "CSS",
    "link": "https://www.w3.org/TR/2016/WD-html51-20160310/document-metadata.html#element-attrdef-style-scoped",
    "summary": "Boolean attribute for the <style> element (<style scoped>). When present, its styles only apply to the parent element.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "spec": "html51",
    "id": 5374137958662144,
    "uservoiceid": 6508310
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  {
    "name": "Proxies (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Proxies are objects for which the programmer has to define the semantics in JavaScript. ",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Proxy",
    "id": 4811188005240832,
    "uservoiceid": 6263801
  },
  {
    "name": "Touch Events",
    "category": "User input",
    "link": "https://www.w3.org/TR/touch-events/",
    "summary": "Touchscreen input API, originally introduced by Apple on iOS. Support is currently limited to only devices with a touchscreen (can be overridden in about:flags). See Pointer Events for touch, pen, and mouse input across all device types.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "10240",
      "flag": true
    },
    "spec": "touch-events",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Touch_events",
    "id": 6156165603917824,
    "uservoiceid": 6508302
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  {
    "name": "onerror Exception Parameter (5th Parameter)",
    "category": "DOM",
    "link": "https://www.w3.org/html/wg/drafts/html/master/webappapis.html#runtime-script-errors",
    "summary": "Unhandled exceptions trigger the 'window.onerror' callback (or 'self.onerror' inside Workers) for centralized handling. The 5th parameter will have the exception itself.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "html51",
    "id": 6416612420747264,
    "uservoiceid": 6263806
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  {
    "name": "FileWriter",
    "category": "File APIs",
    "link": "https://dev.w3.org/2009/dap/file-system/file-writer.html",
    "summary": "Enables writing to files from web applications.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
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    "spec": "file-system",
    "id": 5963201313243136,
    "uservoiceid": 6263821
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  {
    "name": "FileReader",
    "category": "File APIs",
    "link": "https://w3c.github.io/FileAPI/#dfn-filereader",
    "summary": "The FileReader object lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "fileapi",
    "msdn": "https://developer.mozilla.org/docs/Web/API/FileReader",
    "id": 5171003185430528
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  {
    "name": "Server-Sent Events (EventSource)",
    "category": "DOM",
    "link": "https://www.w3.org/TR/eventsource/",
    "summary": "Enables push notifications from the server received as DOM events.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
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    "id": 5311740673785856,
    "uservoiceid": 6263825
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  {
    "name": "Message Channels",
    "category": "Realtime / Communication",
    "link": "https://www.w3.org/TR/webmessaging/",
    "summary": "A messaging system that allows documents to communicate with each other regardless of their source domain, in a way designed to avoid cross-site scripting attacks.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "webmessaging",
    "msdn": "https://developer.mozilla.org/docs/Web/API/MessageEvent",
    "id": 6710044586409984
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  {
    "name": "Efficient Script Yielding - setImmediate()",
    "category": "Performance",
    "link": "https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/setImmediate/Overview.html",
    "summary": "Allows web applications to flush the browser event queue and receive an immediate callback.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10"
    },
    "spec": "setimmediate",
    "impl_status_chrome": "No active development",
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      "text": "No public signals",
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      "text": "No public signals",
      "value": 5
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  {
    "name": "Beacon",
    "category": "Performance",
    "link": "https://www.w3.org/TR/beacon/",
    "summary": "Enables web applications to asynchronously transfer data from the user agent to a web server, with the user agent taking the responsibility to eventually send the data.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14342"
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    "spec": "beacon",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon",
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  {
    "name": "Prefetch Resource Hints",
    "category": "Performance",
    "link": "https://w3c.github.io/resource-hints/#h-prefetch",
    "summary": "Indicates the browser should preemptively fetch and cache the specified resource.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "resource-hints",
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
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    "safari_views": {
      "text": "No public signals",
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  },
  {
    "name": "Prerender Resource Hints",
    "category": "Performance",
    "link": "https://w3c.github.io/resource-hints/#h-prerender",
    "summary": "Provides a hint to the browser that another page is likely to be loaded by the user (such as the first result of a search) such that it may be prerendered for better performance.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
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    "spec": "resource-hints",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "No public signals",
      "value": 5
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "No public signals",
      "value": 5
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  },
  {
    "name": "CSS Scroll Snap Points",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-snappoints/",
    "summary": "Enables rich, customizable, and performant scrolling experiences like pagination of carousels by using snap points that enforce the scroll offsets that a scroll container may end at after a scrolling operation has completed. ",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "10"
    },
    "spec": "css-snappoints-1",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/CSS_Scroll_Snap_Points",
    "id": 5721832506261504,
    "impl_status_chrome": "No active development",
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      "text": "No public signals",
      "value": 5
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      "text": "In Development",
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  {
    "name": "DOM Level 3 XPath",
    "category": "DOM",
    "link": "https://www.w3.org/TR/DOM-Level-3-XPath/",
    "summary": "Provides simple functionality to access a DOM tree using the XPath syntax.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "dom-level-3-xpath",
    "msdn": "https://developer.mozilla.org/docs/Web/XPath",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
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  {
    "name": "Screen Orientation API",
    "category": "Device",
    "link": "https://dvcs.w3.org/hg/screen-orientation/raw-file/tip/Overview.html",
    "summary": "Provides the ability to read the screen orientation state, to be informed when this state changes, and to be able to lock the screen orientation to a specific state. ",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Prefixed",
      "iePrefixed": "11"
    },
    "spec": "screen-orientation",
    "msdn": "https://developer.mozilla.org/docs/Web/API/ScreenOrientation",
    "id": 6191285283061760
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  {
    "name": "CSS pointer-events",
    "category": "CSS",
    "summary": "Enables control of whether an element can receive input events from a pointing device using an API similar to the existing pointer-events property from SVG.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "msdn": "https://developer.mozilla.org/docs/Web/CSS/pointer-events"
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  {
    "name": "WebDriver",
    "category": "Misc",
    "link": "https://www.w3.org/TR/webdriver/",
    "summary": "A platform and language-neutral interface and associated wire protocol that allows programs or scripts to introspect into, and control the behaviour of, a web browser.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "webdriver",
    "msdn": "https://developer.microsoft.com/microsoft-edge/platform/documentation/dev-guide/tools/webDriver/",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
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  },
  {
    "name": "SVG foreignobject element",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/SVG/extend.html#EmbeddingForeignObjects",
    "summary": "Allows for inclusion of a foreign namespace (such as HTML) which has its graphical content drawn by a different user agent",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "svg2",
    "msdn": "https://developer.mozilla.org/docs/Web/SVG/Element/foreignObject",
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      "text": "Shipped",
      "value": 1
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  {
    "name": "Media Queries Level 4: pointer and hover",
    "category": "CSS",
    "link": "https://drafts.csswg.org/mediaqueries-4/#mf-interaction",
    "summary": "Allows to query the presence and accuracy of the user's pointing input (e.g. for differentiating touch versus mouse). Additionally, allows the page to query whether the user's pointing input supports hover.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
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    "spec": "mediaqueries-4",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/Media_Queries",
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      "text": "No public signals",
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    "safari_views": {
      "text": "No public signals",
      "value": 5
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    "impl_status_chrome": "Enabled by default"
  },
  {
    "name": "Selection API",
    "category": "User input",
    "link": "https://rniwa.github.io/selection-api",
    "summary": "Based on APIs from HTML5 and DOM Range, this specification includes additional methods for programmatically inspecting and modifying the selection.",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "selection-api",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Selection_API",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "impl_status_chrome": "Enabled by default"
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  {
    "name": "ES6 Object Literal Enhancements",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-object-initializer",
    "summary": "Adds computed properties, concise method definitions, and short-hand for properties whose value is initialized to a same-named variable.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
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    "name": "Promises (ES6)",
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    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-promise-objects",
    "summary": "Allows easier and cleaner asynchronous coding. Adds the Promise constructor, along with the 'all' and 'race' utility methods to the language itself.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
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    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise",
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  {
    "name": "Async Functions",
    "category": "JavaScript",
    "link": "https://tc39.github.io/ecmascript-asyncawait",
    "standardStatus": "Working draft or equivalent",
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      "text": "Shipped",
      "ieUnprefixed": "14986",
      "flag": false
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    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/async_function",
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    "name": "Array.prototype.includes (ES2016)",
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    "link": "https://tc39.github.io/Array.prototype.includes",
    "standardStatus": "Working draft or equivalent",
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      "text": "Shipped",
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    "name": "Exponentiation Operator (ES2016)",
    "category": "JavaScript",
    "link": "https://rwaldron.github.io/exponentiation-operator",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
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    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators#Exponentiation_(**)"
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  {
    "name": "Shared Memory and Atomics",
    "category": "JavaScript",
    "link": "https://github.com/tc39/ecmascript_sharedmem",
    "summary": "Shared memory and atomics for ECMAscript.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "16215"
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    "spec": "es6",
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    "name": "Object.getOwnPropertyDescriptors",
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    "summary": "ECMAScript proposal for Object.getOwnPropertyDescriptors.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
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    "spec": "es6"
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  {
    "name": "Karaoke Web Standard",
    "category": "User input",
    "link": "https://pages.adrianba.net/karaoke/",
    "summary": "Provides semantic language processing for two-way communication with a remote host. This new interface creates a system-to-system forced sonic recognition on the receiving party.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "High"
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    "ff_views": {
      "text": "No public signals",
      "value": 5
    },
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      "text": "No public signals",
      "value": 5
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    "name": "SVG External Content",
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    "link": "https://www.w3.org/TR/2010/REC-xlink11-20100506/",
    "summary": "Allows referencing external content in SVG. A common use case for this would be <use xlink:href=\"lib.svg#template\" fill=\"#000000\"></use>",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10547"
    },
    "spec": "svg2",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "uservoiceid": 6263916
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  {
    "name": "Meta Referrer",
    "category": "Security",
    "summary": "Using the referrer metadata attribute, a document can control the behavior of the Referer HTTP header attached to requests that originate from the document.",
    "link": "https://w3c.github.io/webappsec/specs/referrer-policy/",
    "standardStatus": "Editor's draft",
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    "name": "dppx Unit for the resolution Media Query",
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    "summary": "One dppx unit represents the number of 'dots' in a CSS px.",
    "link": "https://www.w3.org/TR/css3-values/#resolution",
    "standardStatus": "Established standard",
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      "ieUnprefixed": "10240"
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    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/resolution#Units"
  },
  {
    "name": "WAV Audio Support",
    "category": "Multimedia",
    "summary": "Enables PCM WAV audio support in HTML5 Audio.",
    "link": "https://w3c.github.io/html/semantics-embedded-content.html#the-audio-element",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "html51",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 1
    }
  },
  {
    "name": "DOM Event Constructors",
    "category": "DOM",
    "summary": "Replaces document.createEvent() and associated event object init methods with constructors for each event interface.",
    "link": "https://dom.spec.whatwg.org/#constructing-events",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "whatwg-dom",
    "msdn": "https://developer.mozilla.org/docs/Web/API/CustomEvent",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    }
  },
  {
    "name": "Math Built-ins (ES6)",
    "category": "JavaScript",
    "summary": "Math related functions - sign, trunc, sinh, cosh, tanh, asinh, acosh, atanh, log10, log2, hypot, fround, clz32, cbrt, log1p, expm1.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-math-object",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Math/",
    "id": 5920790725787648
  },
  {
    "name": "Number Built-ins (ES6)",
    "category": "JavaScript",
    "summary": "New methods and properties on Number, including isFinite, isInteger, isSafeInteger, isNaN, EPSILON, MIN_SAFE_INTEGER, and MAX_SAFE_INTEGER.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "String Built-ins (ES6)",
    "category": "JavaScript",
    "summary": "New methods on String including String.raw and String.fromCodePoint. New methods on String.prototype including codePointAt, normalize, repeat, startsWith, endsWith, and includes.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "Object Built-ins (ES6)",
    "category": "JavaScript",
    "summary": "New methods on Object including assign, is, getOwnPropertySymbols, and setPrototypeOf",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "shipped_opera_milestone": false,
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object",
    "id": 5742083411279872
  },
  {
    "name": "RegExp Built-ins (ES6)",
    "category": "JavaScript",
    "summary": "New methods on RegExp.prototype including match, replace, search, and split.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "14342",
      "flag": true
    },
    "spec": "es6",
    "impl_status_chrome": "No public signals",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "WeakSet (ES6)",
    "category": "JavaScript",
    "summary": "Contains a set of objects such that those objects will be collected if they are not referenced anywhere else.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-math-object",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/WeakSet",
    "id": 5977677567623168
  },
  {
    "name": "__proto__ (ES6)",
    "category": "JavaScript",
    "summary": "Support for legacy prototype manipulation similar to Object.setPrototypeOf.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/proto",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    }
  },
  {
    "name": "Classes (ES6)",
    "category": "JavaScript",
    "summary": "Syntax for declaring classes.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532",
      "flag": false
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Classes",
    "id": 4633745457938432,
    "uservoiceid": 6510201
  },
  {
    "name": "Spread (ES6)",
    "category": "JavaScript",
    "summary": "The spread operator expands iterable expressions into individual arguments. For example, a.b(…array) is roughly the same as a.b.apply(a, array).",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Spread_operator",
    "id": 6031334694715392
  },
  {
    "name": "Template Strings (ES6)",
    "category": "JavaScript",
    "summary": "String literals that allow for expressions to be evaluated and concatenated with the string literal.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Template_literals",
    "id": 4743002513735680
  },
  {
    "name": "Tail Calls (ES6)",
    "category": "JavaScript",
    "summary": "Enables boundlessly recursive algorithms (using constant stack space) for certain code patterns.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "es6",
    "id": 5516876633341952,
    "uservoiceid": 6850816
  },
  {
    "name": "Subclassing (ES6)",
    "category": "JavaScript",
    "summary": "Allows subclassing of built-in types such as Dates and Arrays.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "iePrefixed": "14279"
    },
    "spec": "es6",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "No public signals",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "SIMD",
    "category": "JavaScript",
    "summary": "Enables Single Instruction, Multiple Data instructions to be used from Javascript programs.",
    "link": "https://github.com/johnmccutchan/ecmascript_simd/",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "10240",
      "flag": true
    },
    "spec": "es6",
    "impl_status_chrome": "In Development",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "Modules (ES6)",
    "category": "JavaScript",
    "summary": "Language-level support for defining and consuming modules.",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Mozilla/JavaScript_code_modules",
    "id": 5365692190687232,
    "uservoiceid": 6510097
  },
  {
    "name": "ASM.js",
    "category": "JavaScript",
    "summary": "Performance options for a low-level subset of JavaScript, including recognition of the 'use asm' directive and ahead-of-time compilation.",
    "link": "http://asmjs.org/spec/latest/",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532",
      "flag": false
    },
    "id": 5053365658583040,
    "msdn": "https://developer.mozilla.org/docs/Games/Tools/asm.js",
    "uservoiceid": 6509389
  },
  {
    "name": "Clipboard API",
    "category": "User input",
    "summary": "Standard APIs for interacting with the clipboard (copy/cut/paste operations). IE currently supports a legacy model for clipboard access.",
    "link": "https://w3c.github.io/clipboard-apis/",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development",
      "ieUnprefixed": "15002"
    },
    "spec": "clipboard-apis",
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "uservoiceid": 6515107
  },
  {
    "name": "Web Application Manifest",
    "category": "DOM",
    "summary": "This specification defines a JSON-based manifest, which provides developers with a centralized place to put metadata associated with a web application.",
    "link": "https://w3c.github.io/manifest/",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "id": 6488656873259008,
    "uservoiceid": 6512948
  },
  {
    "name": "Public Key Pinning Extension for HTTP",
    "category": "Network / Connectivity",
    "summary": "Certificate public key pinning is a mechanism which allows specifying a key that must be present in the certificate chain associated with a domain name. HTTP Public Key Pinning (HPKP) is one way of doing certificate public key pinning. In this method, site owner defines pin rules for his domain name via HTTP header. This mechanism assumes that user has had a first clean connection to the site.",
    "link": "https://tools.ietf.org/html/rfc7469",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "id": 4669935557017600,
    "uservoiceid": 7027589
  },
  {
    "name": "ECMAScript Internationalization API",
    "category": "JavaScript",
    "summary": "Provides APIs for string comparison and date/time/number formatting in a locale-aware manner.",
    "link": "https://ecma-international.org/ecma-402/1.0/",
    "spec": "es6",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "11"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "ES6 Numeric Literals",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html",
    "summary": "Allows binary and octal numeric literals using 0b101 and 0o753 respectively.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "id": 4930171014479872
  },
  {
    "name": "<dialog> element for modals",
    "category": "User input",
    "link": "https://w3c.github.io/html/interactive-elements.html#the-dialog-element",
    "summary": "An HTML element for modal and non-modal dialog boxes",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "html51",
    "id": 5770237022568448,
    "uservoiceid": 6508895
  },
  {
    "name": "Color input type",
    "category": "User input",
    "link": "https://www.w3.org/TR/html5/forms.html#color-state-(type=color)",
    "summary": "Input controls for picking colors via <input type='color'>.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/input/color"
  },
  {
    "name": "Date-related input types",
    "category": "User input",
    "link": "https://w3c.github.io/html/sec-forms.html#date-state-typedate",
    "summary": "Input controls for picking dates via <input type='date'>,<input type='month'>, and <input type='week'>.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/input/date",
    "id": 6640933999214592,
    "uservoiceid": 6513996
  },
  {
    "name": "Time-related input types",
    "category": "User input",
    "link": "https://w3c.github.io/html/sec-forms.html#time-state-typetime",
    "summary": "Input controls for picking times via <input type='time'>, and <input type='datetime-local'>.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10532"
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/input/time",
    "id": 6640933999214592,
    "uservoiceid": 6513996
  },
  {
    "name": "<main> element",
    "category": "DOM",
    "link": "https://w3c.github.io/html/grouping-content.html#the-main-elementt",
    "summary": "Semantic HTML5 element that represents the main content of the document or application.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/main",
    "uservoiceid": 6514003
  },
  {
    "name": "<keygen> element",
    "category": "Security",
    "link": "https://www.w3.org/TR/html5/forms.html#the-keygen-element",
    "summary": "A form element for a key pair generator control.  Support here indicates UI for picking keys and some transport to submit them. However, significant interoperability issues exist with the DOM interfaces and protocols for this feature.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "html51"
  },
  {
    "name": "Media Fragments",
    "category": "Multimedia",
    "link": "https://www.w3.org/TR/media-frags/",
    "summary": "Standardizes a URL fragment syntax for specifying a fragment of a media resource.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "uservoiceid": 7214762
  },
  {
    "name": "SVG+SMIL Animation",
    "category": "Graphics",
    "link": "https://www.w3.org/TR/SVG/animate.html",
    "summary": "XML-based syntax for specifying animations of SVG.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "spec": "svg2"
  },
  {
    "name": "Hardware Concurrency",
    "category": "Device",
    "link": "https://wiki.whatwg.org/wiki/NavigatorCores",
    "summary": "An API for reading the system's total number of logical processors available to the user agent, up to an optional thread limit per origin.",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14986"
    },
    "spec": "navigatorcores",
    "msdn": "https://developer.mozilla.org/docs/Web/API/NavigatorConcurrentHardware",
    "id": 6248386202173440
  },
  {
    "name": "Web Bluetooth",
    "category": "Device",
    "link": "https://webbluetoothcg.github.io/web-bluetooth/",
    "summary": "An API for communicating with Bluetooth Low Energy devices as a GATT Client.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "web-bluetooth",
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "id": 5264933985976320,
    "uservoiceid": 9775308
  },
  {
    "name": "Web NFC API",
    "category": "Device",
    "link": "https://w3c.github.io/web-nfc/index.html",
    "summary": "Enables NFC (near field communications) wireless communication between two devices at close proximity, usually less than a few centimeters",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "web-nfc",
    "id": 6261030015467520
  },
  {
    "name": "Shared Web Workers",
    "category": "JavaScript",
    "link": "https://html.spec.whatwg.org/multipage/workers.html#shared-workers-and-the-sharedworker-interface",
    "summary": "A special type of WebWorker that can commincate across windows/tabs for a site.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Not currently planned"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "spec": "workers"
  },
  {
    "name": "Platform for Privacy Preferences 1.0 (P3P 1.0)",
    "category": "Misc",
    "link": "https://www.w3.org/TR/P3P/",
    "summary": "The Platform for Privacy Preferences Project (P3P) enables web sites to express their privacy practices in a standard format allowing user agents to automate decision-making based on these practices when appropriate.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Deprecated"
    },
    "impl_status_chrome": "No public signals",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    }
  },
  {
    "name": "WOFF File Format 2.0",
    "category": "CSS",
    "link": "https://www.w3.org/TR/WOFF2/",
    "summary": "Based on experience with WOFF 1.0, which is widely deployed, this specification was developed to provide improved compression and thus lower use of network bandwidth, while still allowing fast decompression even on mobile devices. This is achieved by combining a content-aware preprocessing step and improved entropy coding, compared to the Flate compression used in WOFF 1.0.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "id": 6718644721549312,
    "uservoiceid": 6510222
  },
  {
    "name": "Fetch API",
    "category": "Network / Connectivity",
    "link": "https://fetch.spec.whatwg.org/",
    "summary": "The Fetch specification defines requests, responses, and the process that binds them; fetching.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14342"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "spec": "whatwg-fetch",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Fetch_API",
    "id": 6730533392351232,
    "uservoiceid": 6964411
  },
  {
    "name": "HTTP Live Streaming (HLS)",
    "category": "Multimedia",
    "link": "https://tools.ietf.org/html/draft-pantos-http-live-streaming-08",
    "summary": "Expands our plugin-free adaptive video streaming to support the popular HLS protocol for transferring unbounded streams of multimedia data.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "msdn": "https://developer.mozilla.org/Apps/Fundamentals/Audio_and_video_delivery/Live_streaming_web_audio_and_video#HLS"
  },
  {
    "name": "Motion JPEG (MJPG)",
    "category": "Multimedia",
    "summary": "Adds support for the MJPG video format, popular with IP cameras.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "Enabled by default",
      "value": 2
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  },
  {
    "name": "CSS Gradient Midpoints",
    "category": "Graphics",
    "link": "https://dev.w3.org/csswg/css-images/#color-stop-syntax",
    "summary": "Allows specifying an optional location between the color stops of a CSS gradient.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "spec": "css-image-4"
  },
  {
    "name": "ARIA Landmark Roles",
    "category": "Misc",
    "link": "https://www.w3.org/TR/wai-aria/roles#landmark_roles",
    "summary": "Support for ARIA roles indicating regions of the page intended as navigational landmarks.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "Enabled by default",
      "value": 2
    }
  },
  {
    "name": "HTML Sections in Accessibility API",
    "category": "Misc",
    "link": "https://www.w3.org/TR/html-aapi/",
    "summary": "Exposes HTML sectioning elements (such as section, article, main, etc.) in the Accessibility API.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14393"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "Enabled by default",
      "value": 2
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  },
  {
    "name": "Accessible Rich Internet Applications (WAI-ARIA) 1.1",
    "category": "Misc",
    "link": "https://www.w3.org/TR/wai-aria-1.1/",
    "summary": "Full support for new WAI-ARIA 1.1 roles, states, and properties which define new accessible user interface elements since WAI-ARIA 1.0. Microsoft Edge currently supports the following ARIA roles: none, article, definition, log, math, note, scrollbar,  application, banner, complementary, contentinfo, form, main, navigation, search; and ARIA properties: aria-atomic, aria-autocomplete, aria-dropeffect, aria-grabbed, aria-label, aria-multiline, aria-orientation, aria-sort, aria-valuetext. Note that WAI-ARIA support is complex and not fully implemented in any browser.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "impl_status_chrome": "In Development",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "safari_views": {
      "text": "In Development",
      "value": 2
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  },
  {
    "name": "Accessible Name and Description: Computation and API Mappings 1.1",
    "category": "Misc",
    "link": "https://www.w3.org/TR/accname-aam-1.1/",
    "summary": "Determines names and descriptions of accessible objects to expose via UIA for assistive technologies to describe to users.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14393"
    },
    "impl_status_chrome": "No active development",
    "shipped_opera_milestone": false,
    "ff_views": {
      "text": "No public signals",
      "value": 2
    },
    "safari_views": {
      "text": "No public signals",
      "value": 2
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  },
  {
    "name": "CSS Transitions for SVG elements",
    "category": "Graphics",
    "link": "https://dev.w3.org/csswg/css-animations-1/",
    "summary": "Allows CSS Transitions for SVG elements.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "shipped_opera_milestone": true,
    "ff_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "safari_views": {
      "text": "Enabled by default",
      "value": 2
    },
    "spec": "css-animations-1"
  },
  {
    "name": "Upgrade insecure resource requests",
    "category": "Network / Connectivity",
    "link": "https://w3c.github.io/webappsec/specs/upgrade/",
    "summary": "A mechanism which allows authors to instruct a user agent to upgrade a priori insecure resource requests to secure transport before Fetching them.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "id": 6534575509471232,
    "uservoiceid": 7314353
  },
  {
    "name": "CSS Logical Properties Level 1",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-logical-props/",
    "summary": "Introduces logical properties and values that provide the author with the ability to control layout through logical, rather than physical, direction and dimension mappings.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "High"
    },
    "spec": "css-logical-props-1",
    "uservoiceid": 7438435
  },
  {
    "name": "Console Logging APIs",
    "category": "Misc",
    "link": "https://github.com/DeveloperToolsWG/console-object",
    "summary": "APIs to log messages to a connected developer tool. Covering console.assert, console.log, console.info, console.warn, console.error, console.debug, console.dir, console.dirxml.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "10"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "msdn": "https://developer.microsoft.com/microsoft-edge/platform/documentation/f12-devtools-guide/console/"
  },
  {
    "name": "console.table",
    "category": "Misc",
    "link": "https://github.com/DeveloperToolsWG/console-object",
    "summary": "console.table allows the logging of tabular data to a connected developer tool.",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text":  "Shipped",
      "ieUnprefixed": "16299"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "uservoiceid": 6796750
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  {
    "name": "CSS initial value",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-cascade/#initial",
    "summary": "If the cascaded value of a property is the initial keyword, the property’s initial value becomes its specified value.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10565"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "spec": "css-cascade-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/initial",
    "uservoiceid": 6587303
  },
  {
    "name": "CSS unset value",
    "category": "CSS",
    "link": "https://dev.w3.org/csswg/css-cascade/#unset",
    "summary": "If the cascaded value of a property is the ‘‘unset’#’ keyword, then if it is an inherited property, this is treated as ‘inherit’, and if it is not, this is treated as ‘initial’. This keyword effectively erases all declared values occurring earlier in the cascade, correctly inheriting or not as appropriate for the property (or all longhands of a shorthand).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10565"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "css-cascade-3",
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/unset"
  },
  {
    "name": "showModalDialog",
    "category": "Misc",
    "link": "https://www.w3.org/html/wg/drafts/html/master/browsers.html#window",
    "summary": "The global showModalDialog() method displays a modal dialog box containing a specified HTML document. This feature has an incredibly high cost in terms of code complexity since it requires us to run an event loop on top of an arbitrary JavaScript stack. It also complicates the web platform by making task dispatch reentrant and hard to reason about.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Deprecated",
      "ieUnprefixed": "8"
    },
    "ff_views": {
      "text": "Deprecated",
      "value": 1
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    "spec": "html5",
    "id": 5608754573737984
  },
  {
    "name": "Backdrop filter",
    "category": "CSS",
    "link": "https://dev.w3.org/fxtf/filters-2/#BackdropFilterProperty",
    "summary": "Applies a CSS filter effect to the content behind an element. This is not the element's background but the content that would be drawn behind it.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text":"In Development"
    },
    "impl_status_chrome": "In Development",
    "ff_views": {
      "text": "No public signals",
      "value": 5
    },
    "safari_views": {
      "text": "In Development",
      "value": 1
    },
    "shipped_opera_milestone": false,
    "uservoiceid": 9160189
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  {
    "name": "International input[type=email] validation",
    "category": "User input",
    "link": "https://www.w3.org/Bugs/Public/show_bug.cgi?id=15489",
    "summary": "Adding support for international email addresses that use UTF-8 characters (e.g. 伊昭傑@郵件.商務, राम@मोहन.ईन्फो)",
    "standardStatus": "Public discussion",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": false,
    "spec": "html51",
    "uservoiceid": 7855248
  },
  {
    "name": "WebM Container",
    "category": "Multimedia",
    "link": "http://aomedia.org/",
    "summary": "An open media container format. Supported for adaptive streaming video on devices with VP9 hardware acceleration, may be enabled on any device via an about:flags setting.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14291"
    },
    "id": 6362186595172352,
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Supported_media_formats#WebM",
    "uservoiceid": 6508954
  },
  {
    "name": "Opus Audio Playback",
    "category": "Multimedia",
    "link": "https://tools.ietf.org/html/rfc6716",
    "summary": "An open codec for audio playback.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "id": 4891189287321600,
    "uservoiceid": 6513488
  },
  {
    "name": "Vorbis Audio Codec",
    "category": "Multimedia",
    "link": "https://xiph.org/vorbis",
    "summary": "An open codec for audio.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "In Development"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "shipped_opera_milestone": true,
    "uservoiceid": 6513488
  },
  {
    "name": "Theora Video Codec",
    "category": "Multimedia",
    "link": "https://xiph.org/theora",
    "summary": "An open video codec.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "In Development"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "shipped_opera_milestone": true
  },
  {
    "name": "FLAC Audio Codec",
    "category": "Multimedia",
    "link": "https://xiph.org/flac/format.html",
    "summary": "An open codec for audio.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Supported_media_formats#FLAC",
    "id": 5744731434778624
  },
  {
    "name": "OGG Container",
    "category": "Multimedia",
    "link": "https://xiph.org/ogg/doc/",
    "summary": "An open multimedia container.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "In Development"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "shipped_opera_milestone": true,
    "uservoiceid": 6513488
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  {
    "name": "VP9 Video Playback",
    "category": "Multimedia",
    "link": "https://www.webmproject.org/vp9",
    "summary": "An open codec for video optimized on the web. In the current release, VP9 is only automatically enabled when hardware acceleration is detected. VP9 support can be toggled manually via about:flags.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14291"
    },
    "id": 6362186595172352,
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  {
    "name": "VP8 for RTC",
    "category": "Multimedia",
    "link": "https://tools.ietf.org/html/rfc6386",
    "summary": "Support for the VP8 video format in RTC scenarios.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15019"
    }
  },
  {
    "name": "H.264/AVC for RTC",
    "category": "Multimedia",
    "link": "https://www.itu.int/rec/T-REC-H.264",
    "summary": "Support for H.264/AVC in RTC scenarios.",
    "standardStatus": "De-facto standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15019"
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  },
  {
    "name": "RTC Data Channels",
    "category": "Multimedia",
    "link": "https://w3c.github.io/webrtc-pc/#peer-to-peer-data-api",
    "summary": "Data channels allow a web application to send and receive generic application data peer-to-peer.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "uservoiceid": 17929639
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  {
    "name": "image-rendering",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-images-3/#the-image-rendering",
    "summary": "Provides a hint to the browser on which scaling algorithm should be used.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
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    "spec": "css-images-3",
    "id": 5118058116939776,
    "uservoiceid": 7902426
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  {
    "name": "Conic Gradients",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-images-4/#conic-gradients",
    "summary": "Specifies a gradient where the color stops are placed around the circumference of a circle.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "css-images-4",
    "uservoiceid": 8471413
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  {
    "name": "CSS Motion Path",
    "category": "CSS",
    "link": "https://drafts.fxtf.org/motion-1/",
    "summary": "Motion paths allow authors to animate any graphical object along an author specified path.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "motion-1",
    "id": 6190642178818048,
    "uservoiceid": 7804467
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  {
    "name": "CSS image-set()",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-images-3/#image-set-notation",
    "summary": "Enables responsive images in CSS by specifiying multiple resolutions of an image that the browser can select from for the given situation.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "spec": "css-images-3",
    "uservoiceid": 6606738
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  {
    "name": "CSS all shorthand",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-cascade/#all-shorthand",
    "summary": "The all property is a shorthand that resets all CSS properties except direction and unicode-bidi",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "css-cascade-3",
    "id": 6178222542684160,
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  {
    "name": "CSS vmax unit",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-values/#viewport-relative-lengths",
    "summary": "A viewport relative length unit equal to the larger of vw (viewport width) or vh (viewport height).",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "msdn": "https://developer.mozilla.org/docs/Web/CSS/length#Viewport-percentage_lengths",
    "uservoiceid": 6514497
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  {
    "name": "CSS Contextual Reference Element Pseudo-class :scope",
    "category": "CSS",
    "link": "https://www.w3.org/TR/selectors4/#the-scope-pseudo",
    "summary": "The :scope pseudo-class represents any element that is in the contextual reference element set.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
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  {
    "name": "CSS tab-size property",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-text/#tab-size",
    "summary": "The tab-size property sets the size used to render tab characters in situations where white space is preserved",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "spec": "css-text-3",
    "uservoiceid": 6524689
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  {
    "name": "CSS Relational Pseudo-class :has",
    "category": "CSS",
    "link": "https://drafts.csswg.org/selectors/#relational",
    "summary": "The relational pseudo-class, :has(), is a functional pseudo-class taking a relative selector list as an argument. Similar to jQuery’s :has() selector.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "impl_status_chrome": "No public signals",
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "shipped_opera_milestone": false,
    "uservoiceid": 8977591
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  {
    "name": "CSS Level 3 attr() function",
    "category": "CSS",
    "link": "https://www.w3.org/TR/css3-values/#attr-notation",
    "summary": "Support the attr() function as a component value in properties applied to an element. Currently, attr() is only supported in the content property applied to pseudo-elements.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "impl_status_chrome": "No public signals",
    "ff_views": {
      "text": "No public signals",
      "value": 3
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "shipped_opera_milestone": false,
    "uservoiceid": 7671960
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  {
    "name": "<menu> Element",
    "category": "Misc",
    "link": "https://w3c.github.io/html/interactive-elements.html#the-menu-element",
    "summary": "An HTML element for toolbars and popup menus.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "impl_status_chrome": "No public signals",
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "shipped_opera_milestone": false,
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  {
    "name": "<time> Element",
    "category": "Misc",
    "link": "https://w3c.github.io/html/textlevel-semantics.html#the-time-element",
    "summary": "An HTML element for representing dates and times.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "impl_status_chrome": "No public signals",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "shipped_opera_milestone": false,
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/time",
    "uservoiceid": 6514206
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  {
    "name": "<data> Element",
    "category": "Misc",
    "link": "https://w3c.github.io/html/textlevel-semantics.html#the-data-element",
    "summary": "An HTML element which represents its content in machine-readable and human-readable formats.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/data"
  },
  {
    "name": "<output> Element",
    "category": "Misc",
    "link": "https://w3c.github.io/html/sec-forms.html#the-output-element",
    "summary": "An HTML element for representing the result of a calculation or user action.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "14316"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "spec": "html51",
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/output",
    "uservoiceid": 6514436
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  {
    "name": "ol[reversed] attribute",
    "category": "Misc",
    "link": "https://w3c.github.io/html/grouping-content.html#element-attrdef-ol-reversed",
    "summary": "A boolean attribute that reverses the order of an ordered list when present.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
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    "safari_views": {
      "text": "Shipped",
      "value": 1
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    "shipped_opera_milestone": true,
    "spec": "html51",
    "uservoiceid": 6514423
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  {
    "name": "Screen Capture",
    "category": "Realtime / Communication",
    "link": "https://w3c.github.io/mediacapture-screen-share/",
    "summary": "Screen Capture API allows a user's display or parts thereof be used as the source of a media stream.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "ff_views": {
      "text": "In Development",
      "value": 2
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "shipped_opera_milestone": false,
    "spec": "screen-capture"
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  {
    "name": "Media Capture from Canvas",
    "category": "Multimedia",
    "link": "https://w3c.github.io/mediacapture-fromelement",
    "summary": "Media Capture API can be used to capture Canvas content as MediaStream to be recorded or transmitted to remote peers.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "ff_views": {
      "text": "In Development",
      "value": 2
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    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "id": 4817998447640576
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  {
    "name": "Media Capture from HTML Media Element",
    "category": "Multimedia",
    "link": "https://w3c.github.io/mediacapture-fromelement",
    "summary": "Media Capture API can be used to capture non-DRM content from mediaelement into another MediaStream.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "safari_views": {
      "text": "No public signals",
      "value": 3
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    "id": 5522768674160640
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  {
    "name": "Audio Output Devices API",
    "category": "Multimedia",
    "link": "https://w3c.github.io/mediacapture-output/",
    "summary": "The Audio Output Devices API allows a Web application to direct audio output to authorized endpoints other than the user agent default.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "High"
    },
    "id": 4621603249848320
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  {
    "name": "Form attribute",
    "category": "DOM",
    "link": "https://www.w3.org/TR/html5/forms.html#attr-fae-form",
    "summary": "Attribute for associating input and submit buttons with a form.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "html51",
    "demo": "https://www.impressivewebs.com/html5-form-attribute/",
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "Shipped",
      "value": 1
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTML/Element/form",
    "uservoiceid": 7327649
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  {
    "name": "Reflect (ES6)",
    "category": "JavaScript",
    "link": "https://ecma-international.org/ecma-262/6.0/index.html#sec-reflection",
    "summary": "Provides methods for use in operations that are intercepted. Reflect methods are often used with proxies because they allow you to delegate to default behavior without implementing the default behavior in your code.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "spec": "es6",
    "msdn": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Reflect",
    "id": 6060641169178624
  },
  {
    "name": "FindText API",
    "category": "DOM",
    "link": "https://w3c.github.io/findtext/",
    "summary": "Provides an API for finding ranges of text in a document, with a variety of selection criteria. Similar to a user-agent's find-on-page or page-search capability.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "findtext"
  },
  {
    "name": "Payment Request API",
    "category": "Misc",
    "link": "https://www.w3.org/TR/payment-request/",
    "summary": "A web API to allow merchants (i.e. web sites selling physical or digital goods) to easily accept payments from different payment methods with minimal integration.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15002"
    },
    "spec": "paymentrequest",
    "msdn": "https://developer.mozilla.org/docs/Web/API/PaymentRequest",
    "id": 5639348045217792
  },
  {
    "name": "Web Assembly (MVP)",
    "category": "JavaScript",
    "link": "https://webassembly.github.io/",
    "summary": "WebAssembly or wasm is a new portable, size- and load-time-efficient format suitable for compilation to the web.",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "16241"
    },
    "id": 5453022515691520,
    "msdn": "https://developer.mozilla.org/docs/WebAssembly",
    "uservoiceid": 11423808
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  {
    "name": "CSS Font Loading API",
    "category": "CSS",
    "link": "https://drafts.csswg.org/css-font-loading/",
    "summary": "This CSS module describes events and interfaces used for dynamically loading font resources.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Low"
    },
    "spec": "css-font-loading-api",
    "id": 4594172182921216
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  {
    "name": "Cache API",
    "category": "Offline / Storage",
    "link": "https://w3c.github.io/ServiceWorker/#cache-objects",
    "summary": "The Cache API consists of additional ServiceWorker APIs which allow authors to fully and conveniently manage their content caches for offline use. An origin can have multiple, named Cache objects, whose contents are entirely under the control of Service Worker scripts.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "service-workers",
    "msdn": "https://developer.mozilla.org/docs/Web/API/Cache",
    "id": 6461631328419840
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  {
    "name": "Touch-action: pan-up pan-down pan-left pan-right CSS properties",
    "category": "User input",
    "link": "https://w3c.github.io/pointerevents/",
    "summary": "Adds additional direction-specific values for the CSS touch-action property for pan-up, pan-down, pan-left, pan-right have been added to the specification. ",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration",
      "priority": "Medium"
    },
    "spec": "pointerevents",
    "id": 5712439765106688
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  {
    "name": "HTTP/2 Server Push",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/rfc7540#section-8.2",
    "summary": "HTTP/2 allows a server to pre-emptively send (or \"push\") responses (along with corresponding \"promised\" requests) to a client in association with a previous client-initiated request.  This can be useful when the server knows the client will need to have those responses available in order to fully process the response to the original request.",
    "standardStatus": "Established standard",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "10240"
    },
    "impl_status_chrome": "Enabled by default",
    "ff_views": {
      "text": "Shipped",
      "value": 1
    },
    "shipped_opera_milestone": true,
    "safari_views": {
      "text": "No public signals",
      "value": 3
    },
    "msdn": "https://developer.mozilla.org/docs/Web/HTTP"
  },
  {
    "name": "Encoding Standard",
    "category": "DOM",
    "link": "https://encoding.spec.whatwg.org/",
    "summary": "This specification addresses gaps so user agents do not have to reverse engineer encoding implementations.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "whatwg-encoding",
    "msdn": "https://developer.mozilla.org/docs/Web/API/TextEncoder",
    "id": 5714368087982080
  },
  {
    "name": "Geometry Interfaces",
    "category": "Graphics",
    "link": "https://drafts.fxtf.org/geometry",
    "summary": "This specification provides basic geometric interfaces to represent points, rectangles, quadrilaterals and transformation matrices that can be used by other modules or specifications.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "id": 6015941766807552
  },
  {
    "name": "Background Sync API",
    "category": "Offline / Storage",
    "link": "https://wicg.github.io/BackgroundSync/spec/",
    "summary": "Provides an API for notifying a Service Worker that the user has come back online, or to schedule periodic events to synchronize local data with the server.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "bgsync",
    "msdn": "https://developer.mozilla.org/docs/Web/API/SyncManager",
    "id": 6170807885627392
  },
  {
    "name": "Event Listener \"once\" Option",
    "category": "DOM",
    "link": "https://dom.spec.whatwg.org/#dom-addeventlisteneroptions-once",
    "summary": "Option to mark an event listener to fire only once",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "16299"
    },
    "spec": "dom",
    "msdn": "https://developer.mozilla.org/docs/Web/API/EventTarget/addEventListener#Parameters",
    "id": 5630331130478592,
    "uservoiceid": 17702248
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  {
    "name": "DOM ParentNode methods: prepend, append, and ChildNode methods: before, after, and replaceWith",
    "category": "DOM",
    "link": "https://dom.spec.whatwg.org/#childnode",
    "summary": "Convenience methods for working with DOM Node trees",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "In Development"
    },
    "spec": "dom",
    "msdn": "https://developer.mozilla.org/docs/Web/API/ChildNode",
    "id": 5723067795898368,
    "uservoiceid": 16036408
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  {
    "name": "Media Session",
    "category": "Multimedia",
    "link": "https://wicg.github.io/mediasession",
    "summary": "Enable websites to customize media metadata so they can control the notification and lock screen UI. Also, allow them to control media in the page from outside the page, such as platform UIs and media keys.",
    "standardStatus": "Editor's draft",
    "ieStatus": {
      "text": "Under Consideration"
    },
    "msdn": "https://developer.mozilla.org/docs/Web/API/MediaSession",
    "id": 5639924124483584
  },
  {
    "name": "Passive Event Listeners",
    "category": "Performance",
    "link": "https://github.com/WICG/EventListenerOptions",
    "summary": "Provides an API to mark event listeners as \"passive\", primarily to allow for scrolling performance improvements",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Preview Release",
      "ieUnprefixed": "16215"
    },
    "spec": "passivelisteners",
    "msdn": "https://developer.mozilla.org/docs/Web/API/EventTarget/addEventListener#Parameters",
    "id": 5745543795965952
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  {
    "name": "Cache-Control: Immutable",
    "category": "Network / Connectivity",
    "link": "https://tools.ietf.org/html/draft-mcmanus-immutable",
    "summary": "Allows servers to identify resources that will not be updated during their freshness lifetime, thus, ensuring that a client never needs to revalidate a cached fresh resource to be certain it has not been modified.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Shipped",
      "ieUnprefixed": "15042"
    },
    "impl_status_chrome": "No active development",
    "ff_views": {
      "text": "Enabled by default"
    },
    "safari_views": {
      "text": "Preview Release",
      "value": 1
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    "msdn": "https://developer.mozilla.org/docs/Web/HTTP/Headers/Cache-Control",
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  {
    "name": "CSS Selectors Level 4",
    "category": "CSS",
    "link": "https://drafts.csswg.org/selectors-4/#overview",
    "summary": "Extends the selectors with :matches, :has, :not(complex selector), :dir, case insensitive attribute matching and more.",
    "standardStatus": "Working draft or equivalent",
    "ieStatus": {
      "text": "Under Consideration"
    }
  }
]