In this post I tried to add a link to
https://gitlab.gnome.org/GNOME/libsecret/-/issues/49 and was presented with the following warning:
It seems reproducible for anything at that domain. Looking at the network traffic, the box seems to be expanded on the Discourse server, not in the client browser. Every other domain I’ve tried seems to work fine, though of course I have not tried every known domain. Weird.