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I doubt browsers would allow this, though gamedevs have wanted it for decades now. Particularly UDP.

isn't the udp problem fixed with http3 unreliable webtransport?

Is it? That would be cool. Under the hood is it actual udp?

HTTP3 uses QUIC, it's not "pure" UDP, but it's a protocol based on it

https://en.wikipedia.org/wiki/QUIC

its udp with encryption and congestion control, but the aspects that gamedevs like about udp, low latency and out of order delivery without head of line blocking are features

https://developer.chrome.com/docs/capabilities/web-apis/webt...

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