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://promotion.u-car.com.tw:443/article/62755/%E6%8C%81%E7%BA%8C%E6%8E%A8%E5%87%BA%E9%9B%B6%E5%88%A9%E7%8E%87%E5%8F%8A%E6%99%BA%E9%81%B8%E5%B0%88%E6%A1%88%EF%BC%8CLexus%207%E6%9C%88%E8%B3%BC%E8%BB%8A%E5%84%AA%E6%83%A0%E6%96%B9%E6%A1%88?utm_source=promotion%2525utm_medium=list%2525utm_name=page_1%2525utm_content=image
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\62755\%E6%8C%81%E7%BA%8C%E6%8E%A8%E5%87%BA%E9%9B%B6%E5%88%A9%E7%8E%87%E5%8F%8A%E6%99%BA%E9%81%B8%E5%B0%88%E6%A1%88%EF%BC%8CLexus%207%E6%9C%88%E8%B3%BC%E8%BB%8A%E5%84%AA%E6%83%A0%E6%96%B9%E6%A1%88
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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