Maybe I need to clarify. The upload control is working. Uploading,progress messages etc. The issue is when a user clicks the button to select a file to upload, then closes the dialog. The upload control posts a small amount of data to the server. That post is what is throwing an exception. We only noticed it because we have an unhandled exception handler setup to catch any unhandled exception. That is the problem. The fileupload path is not the problem. All the handlers are setup correctly.

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true">
      <remove name="ScriptModule" />
      <remove name="IGUploadModule" />
      <remove name="ExceptionLoggerHttpModule" />
      <add name="ExceptionLoggerHttpModule" type="DigitalMailer.EDMS.CCC.WebUI.HTTPHandlers.UnhandledExceptionLogger, CommunicationCenter.WebUI" />
      <add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="IGUploadModule"  type="Infragistics.Web.UI.EditorControls.UploadModule, Infragistics35.Web.jQuery.v11.2, Version=11.2.20112.2086, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" preCondition="managedHandler" />
    </modules>
    <handlers>
      <remove name="WebServiceHandlerFactory-Integrated" />
      <remove name="ScriptHandlerFactory" />
      <remove name="ScriptHandlerFactoryAppServices" />
      <remove name="ScriptResource" />
      <remove name="IGUploadStatusHandler" />
      <add name="WebCaptchaImage" path="WebCaptchaImage.axd" verb="GET,HEAD" type="Infragistics.Web.UI.EditorControls.CaptchaImageHandler" />
      <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="ScriptResource" verb="GET,HEAD" path="ScriptResource.axd" preCondition="integratedMode" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      <add name="IGUploadStatusHandler" path="IGUploadStatusHandler.ashx" verb="*" type="Infragistics.Web.UI.EditorControls.UploadStatusHandler, Infragistics35.Web.jQuery.v11.2, Version=11.2.20112.2086, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" preCondition="integratedMode" />
    </handlers>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="2147483648"/>
      </requestFiltering>
    </security>
  </system.webServer>

Hi preet919,

You can just filter requests which are made to this specific URL. As we have answered to Lenny we will not change the URL for the next Service Release.

Thanks,

Miro Hristov

The problem is that the file upload sometimes work and sometimes it doesn't. And there is no set pattern to this. I am so confused with this. I ignored the above request to the url and still same behavior.

We have an unhandled exception module and in that module I inspect the request for this crazy url and if its found then I just return instead of calling our error page 

Ok. Thanks for the information