Front-Channel Logout with IDP Logout URL

I have multiple clients with Front-Channel Logout enabled and a URL defined. When the user logs out they get redirected to the keycloak logout page with the iframe to this logout page and everything works fine.


I also want to log the user out of the IDP. But if I define a logout URL for the identity provider the flow changes and the user gets redirected to that URL instead of the front-channel logout iframes page. Is there any way of configuring keycloak to do both? (or load the IDP logout URL in an iframe in much the same way as all the client iframes?)