I was visiting some transcripts from a chat room and then I found a link to another room which was removed. On that custom error page, I found two main issues and one was caused by another main issue.
This issue can be found in the custom error page shown, because the room is either deleted or not existed at all.
1. The topbar overlays the Object moved to here message whereas here is a link, but it needs much effort to click on because of the topbar.
2. The dropdowns are not loading.
Once clicked, it shows the div and pretend like loading but then suddenly went and hide.
When I checked the console, it shows an issue that it makes a request to
http://chat.site and it presents Access control allow origin is not present in that resource.