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/44566/%E8%B5%B0%E5%87%BA%E6%84%9F%E6%83%85%E9%A2%A8%E6%B3%A2%20%E7%82%8E%E4%BA%9E%E7%B6%B8%E5%B8%A5%E6%B0%A3%E5%87%BA%E5%B8%AD%E6%96%B0%E9%8A%B3%E6%BD%AE%E9%8C%B6%20KLASSE%2014%20%E8%81%96%E8%AA%95%E9%99%90%E5%AE%9A%E7%A6%AE%E7%9B%92%E8%A8%98%E8%80%85%E6%9C%83
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\44566\%E8%B5%B0%E5%87%BA%E6%84%9F%E6%83%85%E9%A2%A8%E6%B3%A2%20%E7%82%8E%E4%BA%9E%E7%B6%B8%E5%B8%A5%E6%B0%A3%E5%87%BA%E5%B8%AD%E6%96%B0%E9%8A%B3%E6%BD%AE%E9%8C%B6%20KLASSE%2014%20%E8%81%96%E8%AA%95%E9%99%90%E5%AE%9A%E7%A6%AE%E7%9B%92%E8%A8%98%E8%80%85%E6%9C%83
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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