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/47939/%5B%E9%9B%86%E9%AB%94%E8%A9%95%E6%AF%94%5D%E4%B8%BB%E6%B5%81%E4%B8%AD%E5%9E%8B%E6%8E%80%E8%83%8C%E8%BB%8A%E2%94%80%E5%A4%9A%E5%AA%92%E9%AB%94%E4%B8%BB%E6%A9%9F%E8%88%87%E6%B1%BD%E5%BA%A7%E7%AF%87?utm_source=roadtest&utm_medium=list&utm_name=page_3&utm_content=title
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\47939\%5B%E9%9B%86%E9%AB%94%E8%A9%95%E6%AF%94%5D%E4%B8%BB%E6%B5%81%E4%B8%AD%E5%9E%8B%E6%8E%80%E8%83%8C%E8%BB%8A%E2%94%80%E5%A4%9A%E5%AA%92%E9%AB%94%E4%B8%BB%E6%A9%9F%E8%88%87%E6%B1%BD%E5%BA%A7%E7%AF%87
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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