TreeView Control not triggering event tvSkills_TreeNodePopulate and not expanding.

Hello Guys,
I am running my application on Azure. I have strange behavior on expanding TreeView throwing error at Application_Error of Global.Asax  "Value cannot be null.\r\nParameter name: parameter".
But this behavior(TreeView) is working fine in non-Azure environment.
and my call stack:
at Microsoft.IdentityModel.Protocols.AuthenticationProtocolMessage.SetParameter(String parameter, String value)    at Microsoft.IdentityModel.Protocols.WsFederationMessage..ctor(IEnumerable`1 parameters)    at Microsoft.Owin.Security.WsFederation.WsFederationAuthenticationHandler.<AuthenticateCoreAsync>d__1f.MoveNext()
--- End of stack trace from previous location where exception was thrown ---    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task)    at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()    at Microsoft.Owin.Security.Infrastructure.AuthenticationHandler.<BaseInitializeAsync>d__0.MoveNext() --- End of stack trace from previous location where exception
was thrown ---    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.Owin.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__0.MoveNext()
--- End of stack trace from previous location where exception was thrown ---    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task
task)    at Microsoft.Owin.Security.Infrastructure.AuthenticationMiddleware`1.<Invoke>d__0.MoveNext() --- End of stack trace from previous location where exception was thrown ---    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task
task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)    at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.<RunApp>d__5.MoveNext() --- End of stack
trace from previous location where exception was thrown ---    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.<DoFinalWork>d__2.MoveNext() --- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()    at Microsoft.Owin.Host.SystemWeb.Infrastructure.ErrorState.Rethrow()    at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.StageAsyncResult.End(IAsyncResult
ar)    at Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.EndFinalWork(IAsyncResult ar)    at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously).
It would be greatly appreciated for solution
Divakar

Hi,
If your code works fine in non-Azure environment, but not work in Azure environment, I would suggest you use remote debug to troubleshoot your azure website, see the detailed steps here:
http://azure.microsoft.com/en-gb/documentation/articles/web-sites-dotnet-troubleshoot-visual-studio/, hope you can find the detailed errors.
Best Regards,
Jambor
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