explicitly use fullscreen.html

index.html

@@ -384,9 +384,6 @@
     For more information, please refer to <https://unlicense.org/>
     @licend
     */
-    converse.initialize({
-        // Please use this connection manager only for testing purposes
-        bosh_service_url: 'https://conversejs.org/http-bind/'
-    });
+    location.href = 'fullscreen.html'
 </script>
 </html>