404 error (Not found) ScriptResource.axd or WebResource.axd

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ASP.NET

IIS7.5

Hello,

I have a website (build in VS 2010) that uses the .net framework 4.0 (asp.net) and also uses some infragistics controls (webdialogwindow). It uses the default scriptmanager. When I test the website locally everything is working as expected (with IIS 7.5 and windows server 2008 R2). But when I install the website on the server (reverse proxy with IIS 7.5 and windows server 2008 R2) of our customer I get a 404 error message that it can't find the ScriptResource.axd and/or the WebResource.axd. Please note that the website works locally on the server of our customer. This problem only occurs when we try to open the website from outside the LAN.

When I set the enablecdn="true" in the scriptmanager I see that the focus of the textfield is working (without the cdn enabled the focus doesn't work). But the infragistics controls still don't work. In debug mode in Chrome I see the following 404 error messages (Not found):

GET http://200.X.XXX.XXX/TEST/ScriptResource.axd?d=vnH4...ukm_3e641&t=410 404 (Not Found)

GET http://200.X.XXX.XXX/TEST/WebResource.axd?d=3y6a_vM...Yi9d_99Dw2&t=6345 404 (Not Found)



Is there someone who might know what is causing this issue and might have a solution?