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://life.u-car.com.tw:443/article/50271/%E5%AF%B6%E7%92%A3%E6%8E%A8%E5%87%BA%E9%BC%A0%E5%B9%B4%E9%99%90%E9%87%8F%E8%85%95%E9%8C%B6%20%E5%AE%8C%E7%BE%8E%E6%8F%89%E5%90%88%E5%93%81%E7%89%8C%E5%A4%9A%E5%85%83%E7%B2%BE%E6%B9%9B%E5%B7%A5%E8%97%9D
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\50271\%E5%AF%B6%E7%92%A3%E6%8E%A8%E5%87%BA%E9%BC%A0%E5%B9%B4%E9%99%90%E9%87%8F%E8%85%95%E9%8C%B6%20%E5%AE%8C%E7%BE%8E%E6%8F%89%E5%90%88%E5%93%81%E7%89%8C%E5%A4%9A%E5%85%83%E7%B2%BE%E6%B9%9B%E5%B7%A5%E8%97%9D
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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