Livechat (new) not loading, old loads fine

When trying to utilize livechat (new) , neither Chrome, nor Firefox show the page. They simply show an error …

New Code (does not work):

 <script type="text/javascript">
 (function(w, d, s, u) {
 	w.RocketChat = function(c) { w.RocketChat._.push(c) }; w.RocketChat._ = []; w.RocketChat.url = u;
 	var h = d.getElementsByTagName(s)[0], j = d.createElement(s);
 	j.async = true; j.src = 'chatlink';
 	h.parentNode.insertBefore(j, h);
 })(window, document, 'script', 'chatlink');
 <!-- End of Rocket.Chat Livechat Script -->

Server Setup Information

  • Version of Rocket.Chat Server:
  • Operating System: Ubuntu
  • Deployment Method: Snap
  • Number of Running Instances: 1
  • DB Replicaset Oplog:
  • NodeJS Version:
  • MongoDB Version:
  • Proxy: caddy
  • Firewalls involved:

Any additional Information

From Chrome console:

Cross-Origin Read Blocking (CORB) blocked cross-origin response link with MIME type text/html. See for more details.

From Firefox console:

Chrome seems to think there’s some sort of XSS involved, but this is a pretty standard setup, having chat go to and serving it from the site itself.