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/61177/%E5%85%B1%E6%8E%A812E0%E8%88%8712E5%E5%85%A9%E5%8B%95%E5%8A%9B%EF%BC%8C%C5%A0koda%20Scala%E5%94%AE%E5%83%B9892E9%E8%90%AC%E8%B5%B7%E3%80%81%E4%B8%8A%E5%B8%82%E5%84%AA%E6%83%A0%E5%83%B9%E6%B8%9B6%E8%90%AC?utm_source=news&utm_medium=related&utm_name=50184&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\61177\%E5%85%B1%E6%8E%A812E0%E8%88%8712E5%E5%85%A9%E5%8B%95%E5%8A%9B%EF%BC%8C%C5%A0koda%20Scala%E5%94%AE%E5%83%B9892E9%E8%90%AC%E8%B5%B7%E3%80%81%E4%B8%8A%E5%B8%82%E5%84%AA%E6%83%A0%E5%83%B9%E6%B8%9B6%E8%90%AC
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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