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   aspNetCore
Error Code   0x00000000
Requested URL   https://tcom-westus3__fa73:80/Press-Releases/2017/%E3%83%86%E3%83%A9%E3%83%86%E3%83%BC%E3%82%BF%E3%80%812016%E5%B9%B4%E7%AC%AC4%E5%9B%9B%E5%8D%8A%E6%9C%9F%E3%81%8A%E3%82%88%E3%81%B22016%E5%B9%B4%E5%BA%A6%E9%80%9A%E5%B9%B4%E3%81%AE%E6%A5%AD%E7%B8%BE%E3%82%92%E7%99%BA%E8%A1%A8
Physical Path   C:\home\site\wwwroot\Press-Releases\2017\%E3%83%86%E3%83%A9%E3%83%86%E3%83%BC%E3%82%BF%E3%80%812016%E5%B9%B4%E7%AC%AC4%E5%9B%9B%E5%8D%8A%E6%9C%9F%E3%81%8A%E3%82%88%E3%81%B22016%E5%B9%B4%E5%BA%A6%E9%80%9A%E5%B9%B4%E3%81%AE%E6%A5%AD%E7%B8%BE%E3%82%92%E7%99%BA%E8%A1%A8
Logon Method   Not yet determined
Logon User   Not yet determined
Request Tracing Directory   C:\home\LogFiles

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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