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://feature.u-car.com.tw:80/article/35434/%E4%B8%AD%E5%8F%A4%E8%BB%8A%E6%80%8E%E9%BA%BC%E8%B2%B7%E6%89%8D%E5%AE%89%E5%BF%83%EF%BC%9F%E2%94%80%E6%8C%91%E9%81%B8%E5%A4%A0%E4%BF%A1%E8%AD%BD%E7%9A%84%E8%81%AF%E7%9B%9F%E6%98%AF%E6%AD%A3%E8%A7%A3%EF%BC%81
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\35434\%E4%B8%AD%E5%8F%A4%E8%BB%8A%E6%80%8E%E9%BA%BC%E8%B2%B7%E6%89%8D%E5%AE%89%E5%BF%83%EF%BC%9F%E2%94%80%E6%8C%91%E9%81%B8%E5%A4%A0%E4%BF%A1%E8%AD%BD%E7%9A%84%E8%81%AF%E7%9B%9F%E6%98%AF%E6%AD%A3%E8%A7%A3%EF%BC%81
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 »