Hi, I am facing the same issue. I have configured the Logout URL in the SAML application but it is not redirecting back to the configured logout URL. It only logout from the Azure account and stays there. I checked in network tab in browser. there is no redirect request being sent to the application.
SSO SAML ReturnTo redirect after logout is ignored. Is there a way to enable this?
This seems to be a longstanding bug when interfacing with MS's SSO, but I can't find any explanation about why it still exists. Essentially the way SAML 2.0 works is you start a logout with the IdP and it in turn calls your logout URL which works fine, but it's also supposed to then redirect using the supplied ReturnTo query argument. Instead it goes from "Hang on a moment while we sign you out." to "You signed out of your account It's a good idea to close all browser windows." It then just stays at the last message and the user must manually go back to the application. This isn't the flow users expect. They expect to be taken back to the login page of the site they were just at.
Is there an undocumented way to get MS's login system to adhere to the ReturnTo redirect?