const myports = [];
addEventListener("connect", connect);

function connect(event) {
  const port = event.ports[0];
  myports.push(port);
  port.addEventListener("message", send);
  port.start();
}
function send(event) {
  for (let f = 0; f < myports.length; f++) {
    myports[f].postMessage("Your Name is " + event.data);
  }
}