HTTP2 Server Push

[paulirish]

Known browsers that support:

• Chrome & Opera: yup
• Safari: don't think so
• Firefox: maybe!
• Edge: maybe..

Test pages:

• https://http2-push.appspot.com/
• https://http2.cloudflare.com/ (apparently)

[aaronlink]

FWIW, http2.cloudflare.com does not appear to actually push any resources when I visit it (according to Chrome's Net Internals tool).

[connorshea]

@aaronlink It does now, I believe.

[alcidesv]

There is a list of browsers that support HTTP/2 server push in this article.
In their latest incarnations:

• Firefox
• Chrome
• Internet Explorer 11
• Edge
• Opera

Not supporting it:

• Safari.

[scottjehl]

Also, info on safari and iOS:
https://twitter.com/colinbendell/status/816662477207379968
https://twitter.com/colinbendell/status/816662703305588737

[Schweinepriester]

For unshipping in Chrome see #5688.

Now also being unshipped in Firefox: https://groups.google.com/a/mozilla.org/g/dev-platform/c/vU9hJg343U8/m/4cZsHz7TAQAJ?pli=1