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/33640/%E5%A4%A7%E6%94%B9%E6%AC%BEElantra%203%E5%8B%95%E5%8A%9B%E8%A6%8F%E6%A0%BC%E8%93%84%E5%8B%A2%E5%BE%85%E7%99%BC%EF%BC%8C%E8%83%BD%E6%BA%90%E5%B1%802017%E5%B9%B41%E6%9C%88%E6%B2%B9%E8%80%97%E6%B8%AC%E8%A9%A6%E6%95%B8%E6%93%9A%E5%87%BA%E7%88%90
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\33640\%E5%A4%A7%E6%94%B9%E6%AC%BEElantra%203%E5%8B%95%E5%8A%9B%E8%A6%8F%E6%A0%BC%E8%93%84%E5%8B%A2%E5%BE%85%E7%99%BC%EF%BC%8C%E8%83%BD%E6%BA%90%E5%B1%802017%E5%B9%B41%E6%9C%88%E6%B2%B9%E8%80%97%E6%B8%AC%E8%A9%A6%E6%95%B8%E6%93%9A%E5%87%BA%E7%88%90
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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