The non-Discourse parts of my site use the Discourse Connect Provider for logins. I noticed yesterday that the Discourse login page no longer redirects back to the page the user came from,. Instead, a successful login redirects to our forum. We haven’t changed what we send Discourse’s /session/sso_provider endpoint since May, and the return_sso_url we set in the request payload looks to me like what we’re intending to be there.
I’m using Discourse 3.6.0.beta1-dev. I don’t know when the problem started, as logging out isn’t something I do myself very often. We have updated Discourse several times since May, which makes me wonder if I’m seeing a regression.
Where can I look to troubleshoot this further?