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://feature.u-car.com.tw:80/article/37056/%E4%BA%BA%E7%94%9F%E5%8B%81%E9%9A%8E%E7%9A%84%E6%9C%80%E4%BD%B3%E9%81%B8%E6%93%87%E2%94%80Porsche%20Cayenne%20Elite%20Package%E8%8F%81%E8%8B%B1%E5%85%B8%E8%97%8F%E7%89%88
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\37056\%E4%BA%BA%E7%94%9F%E5%8B%81%E9%9A%8E%E7%9A%84%E6%9C%80%E4%BD%B3%E9%81%B8%E6%93%87%E2%94%80Porsche%20Cayenne%20Elite%20Package%E8%8F%81%E8%8B%B1%E5%85%B8%E8%97%8F%E7%89%88
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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