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/37037/Toyota%202017%E5%B9%B47%E6%9C%88%E4%BF%83%E9%8A%B7%E6%B4%BB%E5%8B%95%EF%BC%8C%E4%BA%9E%E6%B4%B216%E5%9F%8E%E5%B8%82%E8%87%AA%E7%94%B1%E9%81%B8%E5%92%8C3%E9%87%8D%E5%84%AA%E6%83%A0
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\37037\Toyota%202017%E5%B9%B47%E6%9C%88%E4%BF%83%E9%8A%B7%E6%B4%BB%E5%8B%95%EF%BC%8C%E4%BA%9E%E6%B4%B216%E5%9F%8E%E5%B8%82%E8%87%AA%E7%94%B1%E9%81%B8%E5%92%8C3%E9%87%8D%E5%84%AA%E6%83%A0
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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