HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   http://davidpradas.cat:80/ca/Premsa/Premsa/LA%20MUSICA%20DE%20DAVID%20PRADAS%20A%20LESPECTACLE%20MANNEKENS%20PISS%20DE%20LA%20COMPANYIA%20CAMPI%20QUI%20PUGUI/?idp=FD4E25D4-D229-D613-61CF-08D4449F3349&iPag=1
Physical Path   C:\hosting\davidPradas.com\ca\Premsa\Premsa\LA%20MUSICA%20DE%20DAVID%20PRADAS%20A%20LESPECTACLE%20MANNEKENS%20PISS%20DE%20LA%20COMPANYIA%20CAMPI%20QUI%20PUGUI\
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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