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/47483/KKday%E5%A4%8F%E5%AD%A3%E7%B7%9A%E4%B8%8A%E6%97%85%E5%B1%95%E3%80%8C%E5%A4%8F%E6%97%A5%E5%AC%89%E6%88%B2%E8%B6%A3%E3%80%8D%20%E9%99%90%E6%99%82%E5%84%AA%E6%83%A0%E6%9C%80%E6%AE%BA%E8%B2%B7%E4%B8%80%E9%80%81%E4%B8%80
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\47483\KKday%E5%A4%8F%E5%AD%A3%E7%B7%9A%E4%B8%8A%E6%97%85%E5%B1%95%E3%80%8C%E5%A4%8F%E6%97%A5%E5%AC%89%E6%88%B2%E8%B6%A3%E3%80%8D%20%E9%99%90%E6%99%82%E5%84%AA%E6%83%A0%E6%9C%80%E6%AE%BA%E8%B2%B7%E4%B8%80%E9%80%81%E4%B8%80
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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