mashupbots/socko — pull request #22 by sw-golololo (2012-06-14 07:15:46+00:00)
Title: Case-insensitive comparison of UPGRADE header

Hello!
We've encountered a problem when pattern matching in case client sends header like "Upgrade: WebSocket"
The commit offers the solution
(I'm quite new to github so I'm not sure if it's OK to commit to your master branch. Hope it's OK)