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://news.u-car.com.tw:443/article/33652/2017%E6%97%A5%E5%85%A7%E7%93%A6%E8%BB%8A%E5%B1%95%EF%BC%9A800%E5%8C%B9%E9%A6%AC%E5%8A%9B%E7%99%BB%E5%A0%B4%E3%80%81%E5%BE%8C%E8%BC%AA%E8%BD%89%E5%90%91%E4%B8%8A%E8%BA%AB%EF%BC%8CFerrari%20812%20Superfast%E7%84%A1%E9%A0%90%E8%AD%A6%E7%99%BC%E8%A1%A8
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\33652\2017%E6%97%A5%E5%85%A7%E7%93%A6%E8%BB%8A%E5%B1%95%EF%BC%9A800%E5%8C%B9%E9%A6%AC%E5%8A%9B%E7%99%BB%E5%A0%B4%E3%80%81%E5%BE%8C%E8%BC%AA%E8%BD%89%E5%90%91%E4%B8%8A%E8%BA%AB%EF%BC%8CFerrari%20812%20Superfast%E7%84%A1%E9%A0%90%E8%AD%A6%E7%99%BC%E8%A1%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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