interconnect

const hub = new MessageChannel();
​
const worker: Worker = new Worker("...", { name: "other" });
worker.postMessage({
  type: "interconnect",
  hubIn: hub.port1,
  hubOut: hub.port2
});
​
interconnect("main", hub.port1, hub.port2);
​
// and whenever you're ready
hub.port1.start();
hub.port2.start();

addEventListener("message", event => {
  if ("type" in event.data && event.data.type === "interconnect") {
    interconnect("other", event.data.hubIn, event.data.hubOut);
  }
});