From 53de29f263e1abbebb1e553a3e78d53338086d4a Mon Sep 17 00:00:00 2001
From: schroda <50052685+schroda@users.noreply.github.com>
Date: Tue, 9 Apr 2024 23:37:41 +0200
Subject: [PATCH] Unregister existing service workers (#722)

In case some other app was served on the same domain which registered a service worker, this service worker was incorrectly used and never unregistered
---
 src/index.tsx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/index.tsx b/src/index.tsx
index ea09f773..b72514a4 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -12,6 +12,18 @@ import { App } from '@/App';
 import '@/index.css';
 // roboto font
 import '@fontsource/roboto';
+import { defaultPromiseErrorHandler } from '@/util/defaultPromiseErrorHandler.ts';
+
+if ('serviceWorker' in navigator) {
+    navigator.serviceWorker.ready.then((registration) => {
+        registration.unregister().catch(defaultPromiseErrorHandler('unregister service workers'));
+        if (caches) {
+            caches.keys().then(async (names) => {
+                await Promise.all(names.map((name) => caches.delete(name)));
+            });
+        }
+    });
+}
 
 const container = document.getElementById('root');
 const root = createRoot(container!);