SSO enforement redirects to group sign in
What
Redirects to the SSO sign in page When we require an active SSO session for access.
Why
Showing a 404 not found error can be quite jarring if you are signed in and have access. Users may have signed in with a password, but need to re-authenticate with SSO so that their organization can be confident they should have access. By redirecting to the sign in page the user flow is much smoother.
Covers the redirect part of https://gitlab.com/gitlab-org/gitlab-ee/issues/5758 and https://gitlab.com/gitlab-org/gitlab-ee/issues/9255
Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/11558
Conformity
Edited by James Edwards-Jones