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/39697/%E5%85%A8%E7%90%83%E9%AB%98%E6%8C%AF%E9%A0%BB%E8%A8%88%E6%99%82%E4%B9%8B%E5%86%A0%20%E7%9C%9F%E5%8A%9B%E6%99%82%20DEFY%20%E7%B3%BB%E5%88%97%20El%20Primero%2021%E8%A8%88%E6%99%82%E7%A2%BC%E9%8C%B6
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\39697\%E5%85%A8%E7%90%83%E9%AB%98%E6%8C%AF%E9%A0%BB%E8%A8%88%E6%99%82%E4%B9%8B%E5%86%A0%20%E7%9C%9F%E5%8A%9B%E6%99%82%20DEFY%20%E7%B3%BB%E5%88%97%20El%20Primero%2021%E8%A8%88%E6%99%82%E7%A2%BC%E9%8C%B6
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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