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/23793/%E6%8B%89%E5%8A%9B%E5%B0%B1%E6%98%AF%E9%80%99%E9%BA%BC%E5%A5%BD%E7%8E%A9%E2%94%80%E5%B9%B3%E6%B0%91%E8%B3%BD%E8%BB%8A%E8%A8%88%E7%95%AB16%EF%BC%9ATRCC%E5%98%89%E7%BE%A9%E7%95%AA%E8%B7%AF%E7%AB%99%20(%E4%B8%8B)?utm_source=feature&utm_medium=related&utm_name=26558&utm_content=article
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\23793\%E6%8B%89%E5%8A%9B%E5%B0%B1%E6%98%AF%E9%80%99%E9%BA%BC%E5%A5%BD%E7%8E%A9%E2%94%80%E5%B9%B3%E6%B0%91%E8%B3%BD%E8%BB%8A%E8%A8%88%E7%95%AB16%EF%BC%9ATRCC%E5%98%89%E7%BE%A9%E7%95%AA%E8%B7%AF%E7%AB%99%20(%E4%B8%8B)
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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