Added service worker regisration refresh BOD-73

client/src/serviceWorker.js

@@ -58,6 +58,16 @@ function registerValidSW(swUrl, config) {
   navigator.serviceWorker
     .register(swUrl)
     .then((registration) => {
+      // Start addition---
+      // https://developers.google.com/web/fundamentals/primers/service-workers/lifecycle#manual_updates
+      // Added code, as our application will be open for a long time and we are a SPA, we need
+      //  to trigger checks for updates frequently
+      setInterval(() => {
+        console.log("Checking if service worker was updated in server");
+        registration.update();
+      }, 15 * 60 * 1000); // Every 15 mins check
+      // End addition---
+
       registration.onupdatefound = () => {
         const installingWorker = registration.installing;
         if (installingWorker == null) {