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/7786/%E5%BE%A9%E5%8F%A4%E9%A2%A8%E5%86%8D%E8%B5%B7%EF%BC%8CFiat%20500%E5%A5%AA%E4%B8%8B2008%E6%AD%90%E6%B4%B2%E5%B9%B4%E5%BA%A6%E9%A2%A8%E9%9B%B2%E8%BB%8A%E9%A0%AD%E9%8A%9C?utm_source=news%2525utm_medium=related%2525utm_name=9468%2525utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\7786\%E5%BE%A9%E5%8F%A4%E9%A2%A8%E5%86%8D%E8%B5%B7%EF%BC%8CFiat%20500%E5%A5%AA%E4%B8%8B2008%E6%AD%90%E6%B4%B2%E5%B9%B4%E5%BA%A6%E9%A2%A8%E9%9B%B2%E8%BB%8A%E9%A0%AD%E9%8A%9C
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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