Is there a addtional parameter & or workaround to get post_logout_redirect_uri to work if logout does not resolve internally in azure to a session. I am guessing no session & thus unkonwn client & thus no redirect? Just adding client_id=... does not seem to help.

I mean getting an uri to repeatable redirect back to app. https://login.microsoftonline.com/common/oauth2/v2.0/logout?post_logout_redirect_uri=https%3A%2F%2Flocalhost%2Fmyapp%2Flogout%2F%3F&client_id=<...>

Want to do this for a specific tennant rather than common but I guess its the same.