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://life.u-car.com.tw:443/article/49636/2020%E5%B9%B4%E7%B1%B3%E5%85%B6%E6%9E%97%E6%8C%87%E5%8D%97%E8%A9%95%E9%91%91%E9%A6%96%E5%BA%A6%E8%B7%A8%E8%B6%B3%E8%87%BA%E4%B8%AD%20%E5%9C%A8%E5%9C%B0%E7%89%B9%E8%89%B2%E9%A3%9F%E6%9D%90%E6%B7%B1%E5%8F%97%E4%B8%96%E7%95%8C%E5%90%8D%E5%BB%9A%E9%9D%92%E7%9D%9E
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\49636\2020%E5%B9%B4%E7%B1%B3%E5%85%B6%E6%9E%97%E6%8C%87%E5%8D%97%E8%A9%95%E9%91%91%E9%A6%96%E5%BA%A6%E8%B7%A8%E8%B6%B3%E8%87%BA%E4%B8%AD%20%E5%9C%A8%E5%9C%B0%E7%89%B9%E8%89%B2%E9%A3%9F%E6%9D%90%E6%B7%B1%E5%8F%97%E4%B8%96%E7%95%8C%E5%90%8D%E5%BB%9A%E9%9D%92%E7%9D%9E
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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