Description of problem:

When using a third party auth source and defining the "Login delegation logout URL" option we receive the following error when a user logs out;

Oops, we're sorry but something went wrong Unsafe redirect to "https://external.auth.source/ext/logout", pass allow_other_host: true to redirect anyway.

Is this issue a regression from an earlier version:

Yes, this previously worked for the user when testing in Satellite 6.11.

Steps to Reproduce:

1. Configure external auth source where the URL is not the Satellite

2. Configure "Login delegation logout URL"  and have an authenticated user attempt to logout

Actual behavior:
Authentication of the user from the external source works without issue, but on logout they are presented with an error;

Oops, we're sorry but something went wrong Unsafe redirect to "https://external.auth.source/ext/logout", pass allow_other_host: true to redirect anyway.

Expected behavior:
On logout we expect the logout to occur as the login does, without erroring out and without issue contacting the external source.