Push event of service worker is not being called in multiple tabs about simple-push-demo HOT 2 CLOSED

After some research , I have find out an one possible way to achieve this use case.

After push event triggered, using service worker clients API, I will find out number of open clients in the same origin and post message to all the clients.

Below is the code snippet need to add inside push event in the service worker.

clients.matchAll({
    type: 'window',
    includeUncontrolled: true
  })
  .then(function(windowClients)
  {   
    windowClients.forEach(function(windowClient){
    windowClient.postMessage({
      message: 'Received a push message.'+event.data.text(),
      time: new Date().toString()
    });
  });

});
And add a service worker listener.

navigator.serviceWorker.addEventListener('message', function(event) {
  console.log('Received a message from service worker: ', event.data);
});

from simple-push-demo.

This is the wrong repo for this kind of question, but I did write up some info here: https://web-push-book.gauntface.com/chapter-05/04-common-notification-patterns/#message-a-page-from-a-push-event

from simple-push-demo.