On f34, freeipa-server 4.9.3-2: Upon choosing any action using a
logged-in UI that has been left idle for some hours, browsers lock a
display 'internal server error' (at least on firefox) instead of a
log-in page, or the desired page. No actions on the server side will
clear it. The only work-around is to delete the browser cookies and
cached data, and after navigating to the UI the login page appears normally.
Harry