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://promotion.u-car.com.tw:80/article/39246/SsangYong%202017%E5%B9%B410%E6%9C%88%E4%BB%BD%E4%BF%83%E9%8A%B7%EF%BC%8C%E9%9B%B6%E5%88%A9%E7%8E%87%E5%84%AA%E6%83%A0%E6%8C%81%E7%BA%8C%E5%AF%A6%E6%96%BD%E4%B8%AD
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\39246\SsangYong%202017%E5%B9%B410%E6%9C%88%E4%BB%BD%E4%BF%83%E9%8A%B7%EF%BC%8C%E9%9B%B6%E5%88%A9%E7%8E%87%E5%84%AA%E6%83%A0%E6%8C%81%E7%BA%8C%E5%AF%A6%E6%96%BD%E4%B8%AD
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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