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.eaa.org:443/airventure/features-and-attractions/aircraft-areas/homebuilt-airplanes-area/eaa%20airventure%20oshkosh%20one%20week%20wonder/oww-2014/one-week-wonder-photos/photos-link/oww-at-the-zenith-open-hangar-day/img-2858
Physical Path   D:\Sitecore\Production\930\Web\Proxy\airventure\features-and-attractions\aircraft-areas\homebuilt-airplanes-area\eaa%20airventure%20oshkosh%20one%20week%20wonder\oww-2014\one-week-wonder-photos\photos-link\oww-at-the-zenith-open-hangar-day\img-2858
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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