Customize IDP Redirect Page

Extending the server
1

I have a couple of external OIDC IDPs configured in Keycloak version 20 deployment.
Logging in using these IDPs works great.

But one thing has come up, where in the middle of all the redirects to the external IDP, there is a quick flash of a Keycloak themed page, that says something like ‘Authentication Redirect’.

This happens just before I land on my external IDP login page, and it’s a really quick flash.

I want to customize that quick flash page to be blank - essentially themed to be nothing, so it removes the quick flash, and all I see is the external IDP login through all the redirects.

Which Keycloak FTL page do I need to customize to do this?

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If your SAML IdP supports redirect binding, you can switch from POST auth requests to REDIRECT auth requests. In the identity provider setup, change the “Single Sign-On Service URL” to the redirect URL of the IdP and switch “HTTP-POST Binding for AuthnRequest” to OFF.

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