Autologout Redirect URL Problem When AJAX is Used

There is currently an issue when a user is making AJAX requests and then is autologged out.

Use case:

1. User votes on a post using AJAX. (Note: The AJAX request URL is something like /vote/node/NID/1/voteupdown/f351f5ace551efdb74d4954e81889466)
2. User is away and is autologged out.
3. Autologout logs the user out to a URL like: /logout?destination=vote%2Fnode%2FNID%2F1%2Fvoteupdown%2Ff351f5ace551efdb74d4954e81889466&autologout_timeout=1
4. When the user logs back in, they are redirected to the voting URL rather than the page that they were on when they made the AJAX request.

After making an AJAX request, the redirect URL should continue to be the URL of the page that they were on when they made the AJAX request, since they never really left the page.