Comment 2 for bug 1755258

Fix pushed:

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/berick/lp1755258-webstaff-auth-proxy

One caveat to this branch, however, is it only works seamlessly if the open-ils.auth_proxy service is running. (It doesn't have to be enabled). When the auth_proxy service is not running, the API call fails deep in the OpenSRF JS code, preventing fall-back to standard login. I have a fix for that too and will open an OpenSRF LP bug.