If you care about IE6 these days, and aren't selling to corporate users forced to use it, then you're doing something wrong.
Also, you can just enable it when it's available, and fallback to comet etc when it's not.
Also, you can just enable it when it's available, and fallback to comet etc when it's not.
if (browser.supportsWebSocket) useWebSocket(); else useComet();
I recently did a bit of consulting work for a guy who has a large number of domains receiving primarily organic search traffic. Around 20% of the people hitting those (several million a month) are still using IE6.