[toomim]

SCTP already provides that in WebRTC.

[seangrogg]

But requires a lot of mucking around with STUN/TURN/ICE, which is far less desirable than just "send UDP packets to a browser".

[pthatcherg]

You don't need to use STUN and TURN for client->server use cases, but you do need ICE, DTLS, and SCTP.