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/47630/%E9%80%99%E6%AC%A1%E7%9C%9F%E7%9A%84%E6%98%AF%E6%96%B0%E4%B8%96%E4%BB%A3%E4%BA%86%E2%94%80Mercedes-Benz%20GLE%E5%BE%B7%E5%B7%9E%E8%A9%A6%E9%A7%95%EF%BC%8C%E8%A8%AD%E8%A8%88%E4%B9%98%E7%94%A8%E7%AF%87?utm_source=roadtest%2525utm_medium=list%2525utm_name=page_1%2525utm_content=title
Physical Path   F:\Webs\U-CAR\u-car.com.tw\article\47630\%E9%80%99%E6%AC%A1%E7%9C%9F%E7%9A%84%E6%98%AF%E6%96%B0%E4%B8%96%E4%BB%A3%E4%BA%86%E2%94%80Mercedes-Benz%20GLE%E5%BE%B7%E5%B7%9E%E8%A9%A6%E9%A7%95%EF%BC%8C%E8%A8%AD%E8%A8%88%E4%B9%98%E7%94%A8%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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