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/15805/%E7%B0%A1%E6%BD%94%E5%AF%A6%E7%94%A8%E5%8F%96%E5%8B%9D%E2%94%80%E5%9C%8B%E7%94%A2Ford%20Fiesta%E5%9B%9B%E9%96%80%E4%BA%94%E9%96%8012E6%E8%A9%A6%E9%A7%95%EF%BC%8C%E5%85%A7%E8%A3%9D%E4%B9%98%E7%94%A8%E7%AF%87?utm_source=roadtest&utm_medium=related&utm_name=11137&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\15805\%E7%B0%A1%E6%BD%94%E5%AF%A6%E7%94%A8%E5%8F%96%E5%8B%9D%E2%94%80%E5%9C%8B%E7%94%A2Ford%20Fiesta%E5%9B%9B%E9%96%80%E4%BA%94%E9%96%8012E6%E8%A9%A6%E9%A7%95%EF%BC%8C%E5%85%A7%E8%A3%9D%E4%B9%98%E7%94%A8%E7%AF%87
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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