It is only for TLS, and of course your server needs to support it. However it's definitely not just beta versions. Check it: http://caniuse.com/#search=http2 h

It is only for TLS, and of course your server needs to support it. However it's definitely not just beta versions. Check it: http://caniuse.com/#search=http2 http://caniuse.com/#search=http2 If you broaden that out to http2 and its very similar predicessor spdy then the browser support graph looks even better, including the latest versions of Safari, Mobile Safari, and IE: http://caniuse.com/#feat=spdy http://caniuse.com/#feat=spdy >82% of US traffic supports SPDY or better.