digitalpoint
Well-known member
Okay, so let's test if a new browser window is losing your session cookie or something. If you go into Admin area, edit any random user and scroll down to their "User State" section. In the explanation, there's a link for "Unregistered / Unconfirmed". If you click that, it opens a new window. At that point is it asking you log-in again? It should just show normally in a new window (without a login prompt).
If your browser is deleting cookies in a new browser window (or more importantly you are losing your XenForo session in a new browser window), I suppose what you could try is once you are returned from the permission thing and you get the error, take the URL you are at (the one with the code=xxxx in the URL) and paste that as the URL in the browser window that you are still logged into XenForo admin. At that point the code should still be valid since it wasn't able to redeem it for an access token yet.
If your browser is deleting cookies in a new browser window (or more importantly you are losing your XenForo session in a new browser window), I suppose what you could try is once you are returned from the permission thing and you get the error, take the URL you are at (the one with the code=xxxx in the URL) and paste that as the URL in the browser window that you are still logged into XenForo admin. At that point the code should still be valid since it wasn't able to redeem it for an access token yet.