bugfix in authn. check hook: exit instead of return on unauthenticated xhr requests and requested filestreams.
bugfix in authn. check hook: exit instead of return on unauthenticated xhr requests and requested filestreams.

dartajax/ilios,Trott/ilios,justinchu17/ilios,ilios/ilios,stopfstedt/ilios,justinchu17/ilios,Trott/ilios,thecoolestguy/ilios,stopfstedt/ilios,thecoolestguy/ilios,justinchu17/ilios,ilios/ilios,dartajax/ilios,justinchu17/ilios