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/41845/%E3%80%90U-Live%E7%9B%B4%E6%92%AD%E3%80%91%E7%AC%AC23%E9%9B%86%EF%BC%9A%E5%9C%8B%E5%85%A7SUV%E6%96%B0%E8%BB%8A%E5%A4%A7%E7%88%86%E7%99%BC?%2520%25E9%2580%25B2%25E5%258F%25A3%25E5%25B0%258F%25E8%25BB%258A%25E4%25B8%258D%25E7%2594%2598%25E7%25A4%25BA%25E5%25BC%25B1%25EF%25BC%259FBob&%25E5%25BC%25B5%25E6%2597%25AD%25E5%2591%258A%25E8%25A8%25B4%25E4%25BD%25A0%25EF%25BC%2581
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\41845\%E3%80%90U-Live%E7%9B%B4%E6%92%AD%E3%80%91%E7%AC%AC23%E9%9B%86%EF%BC%9A%E5%9C%8B%E5%85%A7SUV%E6%96%B0%E8%BB%8A%E5%A4%A7%E7%88%86%E7%99%BC
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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