diff --git a/app.js b/app.js
index 9135074..e95b3ce 100644
--- a/app.js
+++ b/app.js
@@ -553,6 +553,9 @@ document.addEventListener('DOMContentLoaded', function () {
         });
 
         navigator.serviceWorker.addEventListener('message', handleServiceWorkerMessage);
+        navigator.serviceWorker.addEventListener('controllerchange', () => {
+            checkInitialCacheStatus();
+        });
     }
     else {
         configManager.init().then(() => {