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://life.u-car.com.tw:443/article/44033/%E5%85%A8%E6%96%B0%E7%99%BE%E5%B9%B4%E9%9D%88%20PREMIER%20%E7%B3%BB%E5%88%97%20%E8%A8%AD%E8%A8%88%E8%AC%9B%E7%A9%B6%E9%A2%A8%E6%A0%BC%20%E8%88%87%E8%85%95%E9%8C%B6%E7%9A%84%E7%94%A8%E9%80%94%E7%9B%B8%E5%BE%97%E7%9B%8A%E5%BD%B0
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\44033\%E5%85%A8%E6%96%B0%E7%99%BE%E5%B9%B4%E9%9D%88%20PREMIER%20%E7%B3%BB%E5%88%97%20%E8%A8%AD%E8%A8%88%E8%AC%9B%E7%A9%B6%E9%A2%A8%E6%A0%BC%20%E8%88%87%E8%85%95%E9%8C%B6%E7%9A%84%E7%94%A8%E9%80%94%E7%9B%B8%E5%BE%97%E7%9B%8A%E5%BD%B0
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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