Dear Twitch-Team,
it’s now more than a year, since you stated HTML5 will come in a few months. The /hls-method is working in only at a fraction of browser.
Regarding the last 2 weeks and the discovered critical security issues with the Adobe Flash Player, it’s now really time, to offer your visitors a working HTML5-alternative, even though it might be in beta-mode.
Flash is an internet-relict of great antiquity. Its time is over. Yours not. Get with the time. Youtube now offers HTML5-support by default.