frontend/src/routes/+layout.svelte

@@ -11,21 +11,14 @@
 				navigator.serviceWorker.register('/service-worker.js');
 			});
 
-			if (BroadcastChannel) {
+			const channel = new BroadcastChannel('sw-messages');
-				const channel = new BroadcastChannel('sw-messages');
+			channel.addEventListener('message', (event) => {
-				channel.addEventListener('message', (event) => {
+				new Toast({ target: node });
-					console.log(event.data);
+			});
-					new Toast({ target: node });
-				});
-			} else {
-				navigator.serviceWorker.addEventListener('message', (evt) => {
-					console.log(evt.data);
-					new Toast({ target: node });
-				});
-			}
 
 			navigator.serviceWorker.ready.then((registration) => {
-				registration.active.postMessage('Save client');
+				console.log(registration);
+				console.log('registered service worker');
 			});
 		}
 	});

frontend/src/sw.ts

@@ -14,12 +14,6 @@ const ASSETS = [
     ...prerendered // dynamic routes
 ];
 
-let client;
-
-addEventListener('message', event => {
-   client = event.source;
-});
-
 self.addEventListener('install', (event) => {
     // Create a new cache and add all files to it
     async function addFilesToCache() {
@@ -30,7 +24,7 @@ self.addEventListener('install', (event) => {
     event.waitUntil(addFilesToCache());
 });
 
-
+const channel = new BroadcastChannel('sw-messages');
 
 
 self.addEventListener('activate', (event) => {
@@ -42,13 +36,7 @@ self.addEventListener('activate', (event) => {
     }
 
     event.waitUntil(deleteOldCaches());
-    let channel;
+    channel.postMessage({title: 'Cache downloaded!'});
-    if(BroadcastChannel) {
-        channel = new BroadcastChannel('sw-messages');
-        channel.postMessage({title: 'Cache Downloaded'});
-    } else {
-        client.postMessage("Cache Downloaded")
-    }
 });
 
 self.addEventListener('fetch', (event) => {