protected void Application_AuthenticateRequest(Object sender, EventArgs e)
        {

            var context = DependencyResolver.Current.GetService<HttpContextBase>();

            var irisPrincipalService = ObjectFactory.GetInstance<IPrincipalService>();

            context.User = irisPrincipalService.GetCurrent(); // Set the HttpContext's User to our IPrincipal (IrisPrincipalService)
        }