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   ExtensionlessUrl-Integrated-4.0
Error Code   0x00000000
Requested URL   https://epc-co.com:443/epc/tw/%E6%B4%BB%E5%8B%95%E5%8F%8A%E6%9C%80%E6%96%B0%E6%B6%88%E6%81%AF/%E6%96%B0%E8%81%9E/artmid/1653/articleid/456/epc-named-a-constant-contact-2012-all-star
Physical Path   C:\inetpub\wwwroot\epc\tw\%E6%B4%BB%E5%8B%95%E5%8F%8A%E6%9C%80%E6%96%B0%E6%B6%88%E6%81%AF\%E6%96%B0%E8%81%9E\artmid\1653\articleid\456\epc-named-a-constant-contact-2012-all-star
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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