sw.js

self.addEventListener('push', (e) => {
  const title   = 'id-go Authentication request';
  const options = 
  { body              : 'Proceed to accept or reject this authentication reqeust'
  , requireInteraction: true // visible until user clicks or dismisses
  , vibrate           : [200, 100, 200, 100, 200, 100, 200] // vibration patter to play when notification is dislpayed
  , icon              : './img/id-go.png'
  , image             : './img/unitus-logo-360-240.png', // needs to be 360x240
  };

  self.registration.showNotification(title, options)
    .then(()     => { console.log('calling showNotification()') })
    .catch((err) => { console.error(`showNotification error: ${err}`) });
});

self.addEventListener('notificationclick', (event) => {
  console.log('On notification click: ', event.notification?.tag);
  // Android doesn't close the notification when you click on it
  // See: http://crbug.com/463146
  event.notification.close();

  // This looks to see if the current is already open and
  // focuses if it is
  event.waitUntil(
    clients.matchAll({
      type: "window"
    })
    .then((clientList) => {
      for (var i = 0; i < clientList.length; i++) {
        var client = clientList[i];
        if (client.url == '/' && 'focus' in client)
          return client.focus();
      }
      if (clients.openWindow) {
        return clients.openWindow('/');
      }
    })
  );
});