I have faced the following behavior. when trying to disable/enable user notification filters, I get “failed to save filter preferences”:
for some reason it is trying to post to malformed URL. it simply lacks domain part. I use XWiki 10.2 docker mysql tomcat. Upgraded to 11 - same thing. Is it a bug ?
It’s docker XWiki instance behind NGINX with SSL.
But I’ve tried to access the same setting directly on container’s tomcat… still the same issue…
Database was sequentially updated from version 8 to 11.
Will check with empty DB on clean instance a bit later…