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/48159/Ford%20Focus%E5%8F%8ARanger%E6%94%9C%E6%89%8B%EF%BC%8C%E6%93%94%E7%B6%B1%E7%AC%AC21%E5%B1%86%E8%87%BA%E5%8C%97%E9%9B%BB%E5%BD%B1%E7%8D%8E%E7%A6%AE%E8%B3%93%E8%BB%8A%E6%AC%BE?utm_source=news&utm_medium=list&utm_name=page_11&utm_content=image
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\48159\Ford%20Focus%E5%8F%8ARanger%E6%94%9C%E6%89%8B%EF%BC%8C%E6%93%94%E7%B6%B1%E7%AC%AC21%E5%B1%86%E8%87%BA%E5%8C%97%E9%9B%BB%E5%BD%B1%E7%8D%8E%E7%A6%AE%E8%B3%93%E8%BB%8A%E6%AC%BE
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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