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://roadtest.u-car.com.tw:443/article/43768/%E9%A0%AD%E5%AE%B6%E6%84%9B%E5%B0%87%E5%AE%89%E5%85%A8%E5%86%8D%E5%8D%87%E7%B4%9A%EF%BC%81%E2%80%93%20CMC%20Veryca%E8%A9%A6%E9%A7%95?utm_source=news&utm_medium=related&utm_name=43046&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\43768\%E9%A0%AD%E5%AE%B6%E6%84%9B%E5%B0%87%E5%AE%89%E5%85%A8%E5%86%8D%E5%8D%87%E7%B4%9A%EF%BC%81%E2%80%93%20CMC%20Veryca%E8%A9%A6%E9%A7%95
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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