
Without the /a/, users are unable to script REST API calls using tools such as curl, as the CurrentUser wasn't being provided. Also fix a minor bug when anonymous users tried to access /a/ URLs. We were throwing an exception when building up our error message. Change-Id: I5ce870960aa107001c4014fefcf914adc366cd8a Signed-off-by: Brad Larson <bklarson@gmail.com>