https://github.com/gimite/web-socket-js https://github.com/gimite/web-socket-js is a good fallback which uses Flash Sockets. Whether you can use them or not rea

https://github.com/gimite/web-socket-js https://github.com/gimite/web-socket-js is a good fallback which uses Flash Sockets. Whether you can use them or not really depends on your target user. I'd argue that for the general public you can use them; they'll be using IE with Flash, Firefox or Chrome. With the latter two you'll have native WebSocket support and with all three it's highly likely that all with have Flash installed. Things are trickier for corporate users where it depends on the corporate IT policy. As ever, there are edge cases.