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/43536/%E5%95%86%E7%94%A8%E8%BB%8A%E4%B9%9F%E4%BE%86%E8%B7%91%E8%B3%BD%E9%81%93%EF%BC%8CVolkswagen%20Transporter%E5%89%B5%E7%B4%90%E6%9F%8F%E6%9E%97%E5%95%86%E7%94%A8%E8%BB%8A%E5%96%AE%E5%9C%88%E7%B4%80%E9%8C%84
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\43536\%E5%95%86%E7%94%A8%E8%BB%8A%E4%B9%9F%E4%BE%86%E8%B7%91%E8%B3%BD%E9%81%93%EF%BC%8CVolkswagen%20Transporter%E5%89%B5%E7%B4%90%E6%9F%8F%E6%9E%97%E5%95%86%E7%94%A8%E8%BB%8A%E5%96%AE%E5%9C%88%E7%B4%80%E9%8C%84
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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