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://promotion.u-car.com.tw:443/article/40845/BMW%20M2%E8%B3%BC%E8%BB%8A%E5%B0%88%E6%A1%88%EF%BC%8C%E6%8F%90%E4%BE%9B%E9%99%90%E9%87%8F%E5%8D%87%E7%B4%9A%E5%8A%A0%E8%A3%9DM%20Performance%E6%8E%92%E6%B0%A3%E7%AE%A1%E5%A5%97%E4%BB%B6
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\40845\BMW%20M2%E8%B3%BC%E8%BB%8A%E5%B0%88%E6%A1%88%EF%BC%8C%E6%8F%90%E4%BE%9B%E9%99%90%E9%87%8F%E5%8D%87%E7%B4%9A%E5%8A%A0%E8%A3%9DM%20Performance%E6%8E%92%E6%B0%A3%E7%AE%A1%E5%A5%97%E4%BB%B6
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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