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/49650/%E7%8D%A8%E5%AE%B6%E8%A8%AD%E8%A8%88%E7%9A%84%E7%B2%BE%E5%93%81%E5%8F%8A%E9%85%8D%E4%BB%B6%EF%BC%8CVolkswagen%E7%B7%9A%E4%B8%8A%E8%B3%BC%E7%89%A9%E5%AE%98%E6%96%B9%E7%B6%B2%E7%AB%99%E9%96%8B%E5%B9%95
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\49650\%E7%8D%A8%E5%AE%B6%E8%A8%AD%E8%A8%88%E7%9A%84%E7%B2%BE%E5%93%81%E5%8F%8A%E9%85%8D%E4%BB%B6%EF%BC%8CVolkswagen%E7%B7%9A%E4%B8%8A%E8%B3%BC%E7%89%A9%E5%AE%98%E6%96%B9%E7%B6%B2%E7%AB%99%E9%96%8B%E5%B9%95
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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