I've read this thread https://xenforo.com/community/threads/external-logout.135043/ and successfully implemented the external logout.
But I'd like to redirect the user to the previous page (not to the forum, which is the default redirect).
Is there any problem of just deleting the cookie in...
Add some Font Awesome icons to your external accounts page as seen here:
Doesn't add much, but still gives a bit more of a finished appearance.
If you don't have FA already added, first open up PAGE_CONTAINER and add this somewhere after <head>