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/40150/%E6%A0%BC%E8%98%AD%E5%93%A5%E5%B0%BC%E6%B2%89%E6%BD%9B%E5%BE%8C%E5%BC%B7%E5%8B%A2%E7%99%BB%E5%A0%B4%20%E6%9C%80%E6%80%A7%E6%84%9F%E4%BA%BA%E5%A6%BB%E8%B3%B4%E7%90%B3%E6%81%A9%E5%87%BA%E5%B8%AD
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\40150\%E6%A0%BC%E8%98%AD%E5%93%A5%E5%B0%BC%E6%B2%89%E6%BD%9B%E5%BE%8C%E5%BC%B7%E5%8B%A2%E7%99%BB%E5%A0%B4%20%E6%9C%80%E6%80%A7%E6%84%9F%E4%BA%BA%E5%A6%BB%E8%B3%B4%E7%90%B3%E6%81%A9%E5%87%BA%E5%B8%AD
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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