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   PageHandlerFactory-Integrated-4.0
Error Code   0x00000000
Requested URL   https://epc-co.com:443/epc/tw/%E6%87%89%E7%94%A8/%E7%9B%B4%E6%B5%81-%E7%9B%B4%E6%B5%81%E9%9B%BB%E6%BA%90%E8%BD%89%E6%8F%9B/GaN-in-High-Density-Servers-ebooklet.aspx
Physical Path   C:\inetpub\wwwroot\epc\tw\%E6%87%89%E7%94%A8\%E7%9B%B4%E6%B5%81-%E7%9B%B4%E6%B5%81%E9%9B%BB%E6%BA%90%E8%BD%89%E6%8F%9B\GaN-in-High-Density-Servers-ebooklet.aspx
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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