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/63661/%E9%8A%B7%E9%87%8F%E8%88%87%E8%B2%A1%E5%8B%99%E4%B8%8D%E6%95%B5%E7%96%AB%E6%83%85%E8%A1%9D%E6%93%8A%EF%BC%8CMcLren%20Elva%E7%94%A2%E9%87%8F%E5%B0%87%E5%86%8D%E6%B8%9B%E8%87%B3149%E8%BC%9B?utm_source=news&utm_medium=list&utm_name=page_8&utm_content=image
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\63661\%E9%8A%B7%E9%87%8F%E8%88%87%E8%B2%A1%E5%8B%99%E4%B8%8D%E6%95%B5%E7%96%AB%E6%83%85%E8%A1%9D%E6%93%8A%EF%BC%8CMcLren%20Elva%E7%94%A2%E9%87%8F%E5%B0%87%E5%86%8D%E6%B8%9B%E8%87%B3149%E8%BC%9B
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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