This is only configurable in Servlet 3.0 with a newer version of JBoss Web/Tomcat than we are running here.
So just bookmark and use one (sub)domain. I might (again) consider a redirect but I forgot the reason why I didn't want that. I actually thought that problem was solved a long time ago.
This needs to be a sticky. This was (possibly) happening to me sporadically as well where authentication was being rejected. Not sure if this is the same root cause but it was very frustrating.
Or can we use one or the other as long as we keep using the same one?
Sounds like this:
So just bookmark and use one (sub)domain.
means use either/or and keep using the same one...