Fix HF demo links again

main.js

@@ -32411,9 +32411,9 @@ function setSampleIFrame(demoInfo, search = '') {
   // Replace the iframe because changing src adds to the user's history.
   demoContainerElem.innerHTML = '';
   if (filename) {
-    const src = url || `demo/${filename}${search}/`;
+    const src = url || `demo/${filename}${search}/index.html`;
     if (window.location.origin.includes("hf")) {
-      demoContainerElem.appendChild(createElem('iframe', { src: `/${src}/index.html` }));
+      demoContainerElem.appendChild(createElem('iframe', { src: `/${src}` }));
      } else {
       demoContainerElem.appendChild(createElem('iframe', { src }));
     }