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://feature.u-car.com.tw:443/article/44501/%E5%84%AA%E9%9B%85%E6%99%82%E5%B0%9A%E8%A6%AA%E8%BF%91%E8%87%AA%E7%84%B6%E2%94%80U-CAR%20X%C2%A0%E5%A5%BD%E6%BA%9C%20Camp%20%E9%9C%B2%E7%87%9F%E6%B4%BB%E5%8B%95%E7%B4%80%E5%AF%A6?utm_source=feature&utm_medium=list&utm_name=page_4&utm_content=title
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\44501\%E5%84%AA%E9%9B%85%E6%99%82%E5%B0%9A%E8%A6%AA%E8%BF%91%E8%87%AA%E7%84%B6%E2%94%80U-CAR%20X%C2%A0%E5%A5%BD%E6%BA%9C%20Camp%20%E9%9C%B2%E7%87%9F%E6%B4%BB%E5%8B%95%E7%B4%80%E5%AF%A6
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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