Comment by dfabulich
14 hours ago
When you have questions like this, the best places to check are the "standards positions" Github repositories for Mozilla and WebKit.
https://github.com/mozilla/standards-positions/issues/1369
Mozilla hasn't officially weighed in, but one decision maker (hsivonen) did vote in favor of it.
Apple WebKit is officially in favor of it, as of just a few days ago.
As far as I can see out-of-order streaming is only half the described functionality – there is also HTML streaming & revamped DOM parsing which does not have the positive signals that out-of-order streaming does:
https://github.com/mozilla/standards-positions/issues/1370
https://github.com/WebKit/standards-positions/issues/629
Yea we've been working with Mozilla and Apple on that one as well but they haven't responded to the standards position yet. I am sure that we'll reach something that's within consensus.