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/38547/%E8%B2%B7%E4%B8%AD%E5%8F%A4%E8%BB%8A%E4%B8%8D%E7%94%A8%E5%86%8D%E6%80%95%E8%A2%AB%E9%A8%99%EF%BC%8C%E9%80%99%E5%80%8B%E5%B9%B3%E5%8F%B0%E5%B9%AB%E4%BD%A0%E5%8C%85%E8%BE%A6%E6%89%80%E6%9C%89%E5%A4%A7%E5%B0%8F%E4%BA%8B
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\38547\%E8%B2%B7%E4%B8%AD%E5%8F%A4%E8%BB%8A%E4%B8%8D%E7%94%A8%E5%86%8D%E6%80%95%E8%A2%AB%E9%A8%99%EF%BC%8C%E9%80%99%E5%80%8B%E5%B9%B3%E5%8F%B0%E5%B9%AB%E4%BD%A0%E5%8C%85%E8%BE%A6%E6%89%80%E6%9C%89%E5%A4%A7%E5%B0%8F%E4%BA%8B
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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