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/50703/%E9%98%B2%E7%96%AB%EF%BC%8C%E5%BE%9E%E5%91%BC%E5%90%B8%E6%BD%94%E6%B7%A8%E7%A9%BA%E6%B0%A3%E9%96%8B%E5%A7%8B%20%E5%BE%B7%E5%9C%8B%E7%99%BE%E9%9D%88SensorAir%E7%A9%BA%E6%B0%A3%E6%B8%85%E6%B7%A8%E6%A9%9F
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\50703\%E9%98%B2%E7%96%AB%EF%BC%8C%E5%BE%9E%E5%91%BC%E5%90%B8%E6%BD%94%E6%B7%A8%E7%A9%BA%E6%B0%A3%E9%96%8B%E5%A7%8B%20%E5%BE%B7%E5%9C%8B%E7%99%BE%E9%9D%88SensorAir%E7%A9%BA%E6%B0%A3%E6%B8%85%E6%B7%A8%E6%A9%9F
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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