WebPagetest Forums
Has Firefox abandoned HTTP/2 Server Push? - Printable Version

+- WebPagetest Forums (https://www.webpagetest.org/forums)
+-- Forum: Web Performance (/forumdisplay.php?fid=3)
+--- Forum: Discuss Test Results (/forumdisplay.php?fid=4)
+--- Thread: Has Firefox abandoned HTTP/2 Server Push? (/showthread.php?tid=15122)

Has Firefox abandoned HTTP/2 Server Push? - greenjobs - 11-08-2017 09:34 PM

When I test the same page on Chrome and an Firefox 56, the latter does not seem to accept HTTP/2 server push anymore. I tried several instances, always with the same result: With Chrome, the pushed assets come in even before the html page does. With Firefox it looks like a classic HTTP 1 waterfall instead.

Here is one example from the same public instance:
Chrome: http://www.webpagetest.org/result/171108_S2_eaf05b5a8438bd303b3496ef4a47975c/
Firefox: http://www.webpagetest.org/result/171108_RY_ce0a9a3a6bfa6aa9f6d579d376fa22e4/

This was clearly different in earlier Firefox versions, e.g. here in Firefox 55: http://www.webpagetest.org/result/170824_KG_EXY/

Have others experienced this too? Any trick to make Firefox accept push again?

RE: Has Firefox abandoned HTTP/2 Server Push? - pmeenan - 11-08-2017 11:46 PM

I believe they have it disabled temporarily while they fix some issues (though I can't find the announcement right now and I may be remembering wrong).