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://news.u-car.com.tw:80/article/36547/Honda%E9%87%8D%E6%A9%9F%E5%A4%A7%E8%BB%8D%E5%A3%93%E5%A2%83%EF%BC%8C2017%E5%B9%B4%E5%85%A8%E6%96%B09%E6%AC%BE%E8%BB%8A%E5%9E%8B%E4%B8%8A%E5%B8%82
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\36547\Honda%E9%87%8D%E6%A9%9F%E5%A4%A7%E8%BB%8D%E5%A3%93%E5%A2%83%EF%BC%8C2017%E5%B9%B4%E5%85%A8%E6%96%B09%E6%AC%BE%E8%BB%8A%E5%9E%8B%E4%B8%8A%E5%B8%82
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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