Logging out from the portal you may want to redirect to any site. In a customer project we have two idps and want to redirect to the second (not the one which is configured as IDP for the portal). We would need a configuration option for "post_logout_redirect_uri". Some informations here: https://www.keycloak.org/docs/25.0.2/server_admin/#_oidc-logout https://openid.net/specs/openid-connect-rpinitiated-1_0.html#RedirectionAfterLogout
Just for completeness: The spec as well as Keycloak only talk about a post logout redirect for the RP-Initiated logout, not for front- or backchannel logouts. This is also your request?
Wouldn't umc/logout/location suffice for this? Otherwise I created #57466 which would be a prerequisite to let the user set the `post_logout_redirect_uri`.
Sory i didnt know this UCR. umc/logout/location works for me (i only testet frontchannel-logout).