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   https://www.ofertadeldia.com:443/puerto-rico-ofertas/oferta/Smile-Again-Learning-Center%2C-2-Localidades/4b44d03d-8b4d-4c0b-249c-08d7360537f2?odd_campaign=smile-again-learning-center-2-localidades-repaso-de-college-board-materiales-adicionales-de-prctica-exmenes-de-prctica&odd_content=detail-button&odd_medium=offer-item-hightlight-click&odd_source=direct&odd_term=offer-item-click
Physical Path   D:\WebSites\OfertaDelDia.com\www\puerto-rico-ofertas\oferta\Smile-Again-Learning-Center%2C-2-Localidades\4b44d03d-8b4d-4c0b-249c-08d7360537f2
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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