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://roadtest.u-car.com.tw:443/article/44455/%E9%9B%96%E7%84%B6%E9%81%B2%E4%BE%86%EF%BC%8C%E4%BD%86%E5%A4%9A%E4%BA%86%E9%BB%9E%E7%AB%B6%E7%88%AD%E5%8A%9B%E4%B9%9F%E6%98%AF%E4%B8%8D%E9%8C%AF%E2%94%80Hyundai%20Kona%2012E6T%204WD%E8%A9%A6%E9%A7%95?utm_source=feature&utm_medium=related&utm_name=44706&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\44455\%E9%9B%96%E7%84%B6%E9%81%B2%E4%BE%86%EF%BC%8C%E4%BD%86%E5%A4%9A%E4%BA%86%E9%BB%9E%E7%AB%B6%E7%88%AD%E5%8A%9B%E4%B9%9F%E6%98%AF%E4%B8%8D%E9%8C%AF%E2%94%80Hyundai%20Kona%2012E6T%204WD%E8%A9%A6%E9%A7%95
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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