Unable to login to Portal or ArcGIS Online using Silverlight Identity Manager. This request generates a token using the client parameter opposed to referrer, which causes the login to fail.
Last Published: June 5, 2015ArcGIS API for Silverlight
Bug ID Number
May 29, 2015
June 11, 2020
ArcGIS API for Silverlight
Operating System Version
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
Firefox does not include a referer in a web request by default (can be enabled). Generating a token to use with ArcGIS Online requires a referer.