Logged out whenever I use popouts

Whether running or playing in a game, whenever I use popouts for items, it immediately logs me out.  Attempting to log in to the popped out screen just shows a blank screen from that point on.  This occurs both whether "Use window popouts for characters" is enabled or disabled, or if I click the popout icon in the upper left.

I think I found the culprit.  Seems to log me out when using the Fedora User Agent extension.  Tells me that some part of their auth is watching the user agent.  I haven't had this issue with any other site so it's a bit weird to run into it here, then again looking at the console log is usually a comedy of errors so maybe I shouldn't be too surprised.