Initialize rails app

app/views/pwa/service-worker.js

@@ -0,0 +1,26 @@
+// Add a service worker for processing Web Push notifications:
+//
+// self.addEventListener("push", async (event) => {
+//   const { title, options } = await event.data.json()
+//   event.waitUntil(self.registration.showNotification(title, options))
+// })
+//
+// self.addEventListener("notificationclick", function(event) {
+//   event.notification.close()
+//   event.waitUntil(
+//     clients.matchAll({ type: "window" }).then((clientList) => {
+//       for (let i = 0; i < clientList.length; i++) {
+//         let client = clientList[i]
+//         let clientPath = (new URL(client.url)).pathname
+//
+//         if (clientPath == event.notification.data.path && "focus" in client) {
+//           return client.focus()
+//         }
+//       }
+//
+//       if (clients.openWindow) {
+//         return clients.openWindow(event.notification.data.path)
+//       }
+//     })
+//   )
+// })