IE Error: Unhandled exception occurred: System.FormatException: Unable to deserialize Json to create WorkflowState.
Some, but not all IE users are getting this error. It does not seem to matter what version of IE they are using and it works OK for all users on all computers with Chrome. In some cases it will work in IE for different users on the same computer and not for others, even admins are having troubles. We have even compared settings to users who work OK and those who don't. In one case the only difference we found was the "Send IDN Server names". Once it was changed it seemed to work, however upon reboot, it again failed. Then again this setting did not work for other users.
If anyone has any ideas, please let me know.
Thank You
07/30/2014 08:33:14:076: CRITICAL: Unhandled exception occurred: System.FormatException: Unable to deserialize Json to create WorkflowState.
at App.OnUnhandledException(Object sender, ApplicationUnhandledExceptionEventArgs e) Geocortex.EssentialsSilverlightViewer.Viewer
at EventHandler`1.Invoke(Object sender, TEventArgs e) System
at Errorstatic .CallApplicationUEHandler(Exception e) MS.Internal
at Errorstatic .GetXresultForUserException(Exception ex) MS.Internal
at DispatcherOperation.Invoke() System.Windows.Threading
at Dispatcher.Dispatch(DispatcherPriority priority) System.Windows.Threading
at Dispatcher.OnInvoke(Object context) System.Windows.Threading
at CallbackCookie.Invoke(Object[] args) System.Windows.Hosting
at ManagedHoststatic .InvokeDelegate(IntPtr pHandle, Int32 nParamCount, ScriptParam[] pParams, ScriptParam& pResult) System.Windows.RuntimeHost
Details:
at Geocortex.Workflow.Client.WorkflowControllerProxy.ProcessWorkflowResultsWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.<OnRun>b__1(Object state)
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Additional Information:
The internal (IT) users are also subject to testing of McAfee Site Advisor Enterprise.
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In this case, a work around was found for those having trouble by either using the fully qualified domain name to the GCE site, or by adding it to the proxy exemptions list. Not sure what is causing this to happen, however, in this case it has been successful.
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