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://news.u-car.com.tw:443/article/47891/%5B%E9%96%93%E8%AB%9C%E7%85%A7%5D%E5%B0%8F%E6%94%B9Ford%20Mondeo%20Wagon%E5%9C%8B%E9%81%93%E9%9C%B2%E8%87%89%EF%BC%8C7%E6%9C%881%E6%97%A5%E4%B8%8A%E5%B8%82%E5%89%8D%E7%8F%BE%E8%B9%A4
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\47891\%5B%E9%96%93%E8%AB%9C%E7%85%A7%5D%E5%B0%8F%E6%94%B9Ford%20Mondeo%20Wagon%E5%9C%8B%E9%81%93%E9%9C%B2%E8%87%89%EF%BC%8C7%E6%9C%881%E6%97%A5%E4%B8%8A%E5%B8%82%E5%89%8D%E7%8F%BE%E8%B9%A4
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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