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   http://promotion.u-car.com.tw:80/article/38965/%E5%8F%B0%E7%81%A3%E5%A5%A7%E8%BF%AA9%E6%9C%88%E4%BB%BD%E4%BF%83%E9%8A%B7%EF%BC%8C%E9%87%9D%E5%B0%8D%E5%A4%9A%E6%AC%BEAudi%E6%88%B0%E5%8A%9B%E5%8A%A0%E8%B4%88%E5%8E%9F%E5%BB%A0%E8%A1%8C%E8%BB%8A%E7%B4%80%E9%8C%84%E5%99%A8
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\38965\%E5%8F%B0%E7%81%A3%E5%A5%A7%E8%BF%AA9%E6%9C%88%E4%BB%BD%E4%BF%83%E9%8A%B7%EF%BC%8C%E9%87%9D%E5%B0%8D%E5%A4%9A%E6%AC%BEAudi%E6%88%B0%E5%8A%9B%E5%8A%A0%E8%B4%88%E5%8E%9F%E5%BB%A0%E8%A1%8C%E8%BB%8A%E7%B4%80%E9%8C%84%E5%99%A8
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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