HTTP/2 is here and it’s supported by all major browsers on mobile and desktop. But, because of its history, the JavaScript ecosystem is not ready to take advantage. That’s a pity, but it is also avoidable.
H2 brings with it a number of features for improving performance: header compression, request multiplexing, shared compression context.
However, I'd like to focus in on one feature in particular, and how it can make a difference for you: server push.