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/33712/%5B%E8%A6%8F%E9%85%8D%E6%87%B6%E4%BA%BA%E5%8C%85%5D%20%E7%83%BD%E7%81%AB%E9%80%A3%E5%A4%A9%E5%88%97%E5%BC%B7%E8%81%9A%EF%BC%8C%E5%B0%8F%E5%9E%8BSUV%E9%9B%86%E8%A9%95%E4%B9%9F%E6%9C%89%E6%87%B6%E4%BA%BA%E5%8C%85?utm_source=roadtest%2525utm_medium=related%2525utm_name=32257%2525utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\33712\%5B%E8%A6%8F%E9%85%8D%E6%87%B6%E4%BA%BA%E5%8C%85%5D%20%E7%83%BD%E7%81%AB%E9%80%A3%E5%A4%A9%E5%88%97%E5%BC%B7%E8%81%9A%EF%BC%8C%E5%B0%8F%E5%9E%8BSUV%E9%9B%86%E8%A9%95%E4%B9%9F%E6%9C%89%E6%87%B6%E4%BA%BA%E5%8C%85
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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