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   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   https://www.zackvisual.com:443/APhotoList/Photoalbum/IMGA0000002585/%E3%80%90%E5%8F%B0%E4%B8%AD%E5%A9%9A%E6%94%9D%E3%80%91%E4%BF%AE%E6%AF%85%E3%80%80%E2%88%9E%E3%80%80%E7%8E%9F%E9%9C%96%E5%A9%9A%E7%A6%AE%E7%B4%80%E9%8C%84%EF%BC%A0%E5%BF%83%E4%B9%8B%E8%8A%B3%E5%BA%AD
Physical Path   C:\WebSites\iSellSite\APhotoList\Photoalbum\IMGA0000002585\%E3%80%90%E5%8F%B0%E4%B8%AD%E5%A9%9A%E6%94%9D%E3%80%91%E4%BF%AE%E6%AF%85%E3%80%80%E2%88%9E%E3%80%80%E7%8E%9F%E9%9C%96%E5%A9%9A%E7%A6%AE%E7%B4%80%E9%8C%84%EF%BC%A0%E5%BF%83%E4%B9%8B%E8%8A%B3%E5%BA%AD
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.

View more information »