Render fulfillment container only when applicable

app/javascript/controllers/content_loader_controller.js

@@ -7,21 +7,40 @@ export default class extends Controller {
     this.load()
   }
 
+  stripHtmlComments(input) {
+    let previous
+    let output = input
+
+    do {
+      previous = output
+      output = output.replace(/<!--[\s\S]*?-->/g, '')
+    } while (output !== previous)
+
+    return output
+  }
+
   load() {
     fetch(this.urlValue)
       .then(response => response.text())
       .then(html => {
-        const parentElement = this.element.parentElement;
-        // Replace the entire element with the fetched HTML
-        this.element.outerHTML = html;
-        // Hide primo links if libkey link is present
-        if (parentElement.querySelector('.libkey-link')) {
-          const resultGet = parentElement.closest('.result-get');
-          if (resultGet) {
-            const primoLinks = resultGet.querySelectorAll('.primo-link');
-            // removing instead of hiding to avoid layout issues when selecting which link to highlight
-            primoLinks.forEach(link => link.remove());
+        const parentElement = this.element.parentElement
+        // Strip HTML comments and trim whitespace
+        const cleanedHtml = this.stripHtmlComments(html).trim()
+        // Replace the entire element with the fetched HTML, or remove if empty
+        if (cleanedHtml) {
+          this.element.outerHTML = cleanedHtml
+          // Hide primo links if libkey link is present
+          if (parentElement.querySelector('.libkey-link')) {
+            const resultGet = parentElement.closest('.result-get')
+            if (resultGet) {
+              const primoLinks = resultGet.querySelectorAll('.primo-link')
+              // removing instead of hiding to avoid layout issues when selecting which link to highlight
+              primoLinks.forEach(link => link.remove())
+            }
           }
+        } else {
+          // Remove result-get container (no fulfillment links)
+          parentElement.remove()
         }
       })
   }