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SCTP over DTLS over ICE over UDP is used quite a lot though!

That's how DataChannels in WebRTC were specified a while ago, and it's the only mechanism to do browser to browser communication.

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Oh yes, when I discovered SCTP I felt so sad for all time I and hundred others had implemented part of its featureset over the last 30 years... I mean, it was packed with great features like separate streams, packet-based, multi-homing and multipath. It felt so right playing with it. Alas, even in my company I failed to convince it was a great replacement for layers upon layers of working udp code. I think it came too late...

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