<!--<httpErrors defaultResponseMode="File" existingResponse="Replace" errorMode="Custom">
      <remove statusCode="400" />
      <remove statusCode="404" />
      <remove statusCode="500" />
      <error statusCode="400" path="/Error/Page400" responseMode="ExecuteURL" />
      <error statusCode="404" path="/Error/Page404" responseMode="ExecuteURL" />
      <error statusCode="500" path="/Error/Page500" responseMode="ExecuteURL" />
    </httpErrors>-->