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   ApiURIs-ISAPI-Integrated-4.0
Error Code   0x00000000
Requested URL   https://news.u-car.com.tw:443/article/49725/%E5%B0%88%E7%82%BA%E9%81%8A%E6%88%B2%E6%89%93%E9%80%A0%E3%80%81%E4%BA%BA%E4%BA%BA%E9%83%BD%E8%83%BD%E6%93%81%E6%9C%89%EF%BC%8CLamborghini%E7%99%BC%E8%A1%A8Lambo%20V12%20Vision%20GT%E5%96%AE%E5%BA%A7%E4%BD%8D%E8%B6%85%E8%B7%91
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\49725\%E5%B0%88%E7%82%BA%E9%81%8A%E6%88%B2%E6%89%93%E9%80%A0%E3%80%81%E4%BA%BA%E4%BA%BA%E9%83%BD%E8%83%BD%E6%93%81%E6%9C%89%EF%BC%8CLamborghini%E7%99%BC%E8%A1%A8Lambo%20V12%20Vision%20GT%E5%96%AE%E5%BA%A7%E4%BD%8D%E8%B6%85%E8%B7%91
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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