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://life.u-car.com.tw:443/article/42573/%E9%99%90%E9%87%8F%E7%BE%8E%E5%91%B3%20%E9%99%90%E6%99%82%E4%BE%9B%E6%87%89%20%E6%B5%B7%E5%B3%B6%E5%A8%81%E5%A3%AB%E5%BF%8C%E8%88%87%E6%AD%90%E5%BC%8F%E9%BA%B5%E5%8C%85%E6%93%A6%E5%87%BA%E7%81%AB%E8%8A%B1
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\42573\%E9%99%90%E9%87%8F%E7%BE%8E%E5%91%B3%20%E9%99%90%E6%99%82%E4%BE%9B%E6%87%89%20%E6%B5%B7%E5%B3%B6%E5%A8%81%E5%A3%AB%E5%BF%8C%E8%88%87%E6%AD%90%E5%BC%8F%E9%BA%B5%E5%8C%85%E6%93%A6%E5%87%BA%E7%81%AB%E8%8A%B1
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.

View more information »