I am using IdentityManager to handle token authentication in my SL application.
The application is calling custom SOE thru ArcGISWebClient class, which ensures the authentication challenge on IdentityManager.
However, the IdentityManager seems to append '&' character at the end of the URL of the SOE call. This causes the following error on the SOE: {"error":{"code":500,"message":"An unexpected error occurred processing the request.","details":[]}}