Cannot reproduce Security error occurred when return back to browser after a while

[Andro]

This bug is present with 2.1.2 version too, unfortunately. Happened multiple times after upgrading my forum including this community.

Same process to reproduce, closed the browser, reopened and clicked on any js thing which throwing this error.

 

[Chris D]

I can no longer reproduce the exact issue previously reported which was related to a delay in the CSRF token being available to our JS.

This, theoretically, would more likely be related to the page load getting an old version of the token. There is code to prevent this though.