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/62828/%E5%85%B1%E4%BA%AB%E7%A7%9F%E8%BB%8A%E4%B8%89%E5%A4%A7%E5%8B%A2%E5%8A%9B-iRent%E3%80%81Smart2go%E8%88%87Zipcar%E4%BD%BF%E7%94%A8%E9%AB%94%E9%A9%97%E6%AF%94%E8%BC%83?utm_source=feature&utm_medium=list&utm_name=page_1&utm_content=image
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\62828\%E5%85%B1%E4%BA%AB%E7%A7%9F%E8%BB%8A%E4%B8%89%E5%A4%A7%E5%8B%A2%E5%8A%9B-iRent%E3%80%81Smart2go%E8%88%87Zipcar%E4%BD%BF%E7%94%A8%E9%AB%94%E9%A9%97%E6%AF%94%E8%BC%83
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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