("The spec doesn't prevent consumers and receivers from communicating in real-time but doesn't describe how right now. This is possibly out of scope, but which of the various real-time communication mechanisms would you implement?" - @csarven)
Personally I don't know much about realtime server-client communications, but if there are a couple of people want this and agree on the same mechanism, we can probably add it (ie proposals welcome)
I like long polling in principle, but in my apps it quickly ran up against the browser's 5 or 6 connection limit. SSE might be okay, but IMHO WebSockets is the way to go.
(WebRTC would be another options, but I've seen very little code for using it between servers and clients.)
Hi Adrian, sorry if we've met and I'm not remembering you....