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by the_mitsuhiko 546 days ago
SSE also works well on HTTP/3 whereas web sockets still don’t.
1 comments

I don't see much point in WebSockets for HTTP/3. WebTransport will cover everything you would need it for an more.
That might very well be but the future is not today.
But why add it to HTTP/3 at all? HTTP/1.1 hijacking is a pretty simple process. I suspect HTTP/3 would be significantly more complicated. I'm not sure that effort is worth it when WebTransport will make it obselete.
It was added to HTTP/2 as well and there is an RFC. (Though a lot of servers don’t support it even on HTTP/2)

My point is mostly that SSE works well and is supported and that has A meaningful benefit today.

To have multiple independent websocket streams, without ordering requirements between streams.