Major Description
I did some tests today with a SAML SSO trusted IDP. During these tests I've noticed that the Fediz-IDP will only redirect me once to the trusted 3rd party IDP for login. Then it caches my (3rd party) SAML token even if the token is not valid because the lifetime of that token ended. The result is, that I see an error page at the IDP, instead of getting redirected back again to my 3rd party IDP.
I see two solutions for this issue.
Option 1: Provide a "disable" option on the Fediz IDP to ignore lifetime of cached tokens.
Option 2: Redirect back to 3rd Party IDP if cached token is not valid any longer.
I think it would be good if both options could be provided within Fediz, leaving the choice to the user, depending on their use case.
A current workaround is to disable token caching in the IDP.