From this commit on, api endpoints reply with a 401 error code and non api
endpoints redirect to /error/40X.
This commit also fixes missing restrictions on /loggedin (the "already logged
in page). This was not a security issue, though.
The change also makes error pages automatically redirect the user after few
seconds based on the referrer or the default_redirection_url if provided in the
configuration.
Warning: The old /verify endpoint of the REST API has moved to /api/verify.
You will need to update your nginx configuration to take this change into
account.
6b78240d39