Serving the rubrics webcomponents from under a portal url means that all the requests for the static js files go through the request filter. If a browser does not forward the cookie in the js request, xlogin is returned. This fixes that. Rubrics js is now a purely static asset with no session checks needed.
(cherry picked from commit 01f4a7a7bb452d18a56c93e8f3f9251b5023b50f)