Twitch has previously run the stream videos and chat through Flash and while the videos still continue to be done through Flash, the chat system is now available in HTML5.
Browsers which allow Websocket connections can now use the HTML5 chat and is automatically used when next visiting the site, those with browsers that don’t support Websocket connections will revert to using the previous Flash chat. IRC support will remain unchanged so site visitors using IRC can continue to do so.
Key benefits of using HTML5 over Flash are
- Speed: Chat loads nearly 4x faster on average
- Efficiency: Chat uses fewer CPU resources, especially in busy chat rooms
- The Future: This is a big step towards a complete HTML5 Twitch experience