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/63171/%E9%A0%90%E8%A8%88%E7%AC%AC%E5%9B%9B%E5%AD%A3%E5%9C%8B%E5%85%A7%E7%99%BC%E8%A1%A8%EF%BC%8CPorsche%20Taycan%204S%E5%9C%8B%E5%85%A7%E9%A6%96%E5%BA%A6%E7%8F%BE%E8%BA%AB
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\63171\%E9%A0%90%E8%A8%88%E7%AC%AC%E5%9B%9B%E5%AD%A3%E5%9C%8B%E5%85%A7%E7%99%BC%E8%A1%A8%EF%BC%8CPorsche%20Taycan%204S%E5%9C%8B%E5%85%A7%E9%A6%96%E5%BA%A6%E7%8F%BE%E8%BA%AB
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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