404 Not Found Reserved.ReportViewerWebControl.axd - ReportViewer

Reports can be shown. However, the icon images show errors while checking the image link.

For example, it returned a 404 error on
http://test-reportviewer.net/Reserved.ReportViewerWebControl.axd?OpType=Resource&Version=8.0.50727.42&Name=Icons.FirstPageDisabled.gif

 

Solution:

Please update .net application mode From Integrated to Classic, which will make HTTP handlers working fine.

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