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://news.u-car.com.tw:443/article/13207/%E8%83%BD%E6%BA%90%E5%B1%809%E6%9C%88%E6%B2%B9%E8%80%97%E8%B3%87%E6%96%99%E5%87%BA%E7%88%90%EF%BC%8C%E9%80%B2%E5%8F%A3%E5%B8%82%E5%A0%B4%E5%B9%B4%E5%BA%95%E7%86%B1%E9%AC%A7%E6%B4%BB%E7%B5%A1?utm_source=news&utm_medium=related&utm_name=11578&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\13207\%E8%83%BD%E6%BA%90%E5%B1%809%E6%9C%88%E6%B2%B9%E8%80%97%E8%B3%87%E6%96%99%E5%87%BA%E7%88%90%EF%BC%8C%E9%80%B2%E5%8F%A3%E5%B8%82%E5%A0%B4%E5%B9%B4%E5%BA%95%E7%86%B1%E9%AC%A7%E6%B4%BB%E7%B5%A1
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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