Re: ominauth-shibboleth configuration - gitlab keeps asking for uid/pw authn

Bypassing the problem that gitlab asks for uid/pw authentication I called /users/auth/shibboleth directly (and changed the config to protect /users/auth/shibboleth/callback with shibboleth). This causes a different error ("Sign-in failed because email can't be blank"). The question remains how

ominauth-shibboleth configuration - gitlab keeps asking for uid/pw authn

I am setting up gitlab 8.11-ce with shibboleth authentication based on the docker image , but get stuck in the uid/pw form. I am not sure how to configure this, because the documentation