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   http://news.u-car.com.tw:80/article/37028/Tesla%20Model%203%E7%B5%82%E6%96%BC%E8%A6%81%E4%BE%86%E4%BA%86%EF%BC%81%20%E5%9F%B7%E8%A1%8C%E9%95%B7%EF%BC%9A2017%E5%B9%B47%E6%9C%8828%E6%97%A5%E8%88%89%E8%BE%A6%E4%BA%A4%E8%BB%8A%E6%B4%BE%E5%B0%8D%E3%80%81%E8%87%BA%E7%81%A3%E6%9C%80%E5%BF%AB2018
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\37028\Tesla%20Model%203%E7%B5%82%E6%96%BC%E8%A6%81%E4%BE%86%E4%BA%86%EF%BC%81%20%E5%9F%B7%E8%A1%8C%E9%95%B7%EF%BC%9A2017%E5%B9%B47%E6%9C%8828%E6%97%A5%E8%88%89%E8%BE%A6%E4%BA%A4%E8%BB%8A%E6%B4%BE%E5%B0%8D%E3%80%81%E8%87%BA%E7%81%A3%E6%9C%80%E5%BF%AB2018
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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