Function displayNotification

pwa-testing/notificationsapi/demo.js:22–26

()

var notification;

function displayNotification() {
  if (!notification) {
    notification = new Notification("Text");
  }  
}

function displaySwNotification() {
  navigator.serviceWorker.controller.postMessage( {type: "show_notification", useBadge:  swUseBadge.checked});