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/45544/%E9%99%A4%E4%BA%86%E6%B4%BB%E6%BD%91%E5%8B%95%E6%84%9F%EF%BC%8C%E9%82%84%E5%BE%88%E5%A5%BD%E7%9B%B8%E8%99%95%E5%91%A2%E2%94%80Ford%20Focus%205D%20ST-Line%E8%B3%BD%E9%81%93%E9%AB%94%E9%A9%97?utm_source=roadtest&utm_medium=related&utm_name=44218&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\45544\%E9%99%A4%E4%BA%86%E6%B4%BB%E6%BD%91%E5%8B%95%E6%84%9F%EF%BC%8C%E9%82%84%E5%BE%88%E5%A5%BD%E7%9B%B8%E8%99%95%E5%91%A2%E2%94%80Ford%20Focus%205D%20ST-Line%E8%B3%BD%E9%81%93%E9%AB%94%E9%A9%97
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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