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/63153/6%E5%B9%B4%E6%8F%9B%E4%BA%863%E4%BB%BB%EF%BC%8CFord%E7%8F%BE%E4%BB%BB%E5%9F%B7%E8%A1%8C%E9%95%B7Jim%20Hackett%E5%8D%B3%E5%B0%87%E5%8D%B8%E4%BB%BB%EF%BC%8CJim%20Farley%E6%8E%A5%E6%8E%8CFord%E5%A4%A7%E6%97%97
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\63153\6%E5%B9%B4%E6%8F%9B%E4%BA%863%E4%BB%BB%EF%BC%8CFord%E7%8F%BE%E4%BB%BB%E5%9F%B7%E8%A1%8C%E9%95%B7Jim%20Hackett%E5%8D%B3%E5%B0%87%E5%8D%B8%E4%BB%BB%EF%BC%8CJim%20Farley%E6%8E%A5%E6%8E%8CFord%E5%A4%A7%E6%97%97
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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