Add (pwa)

public/serviceworker.js

@@ -0,0 +1,67 @@
+var staticCacheName = "pwa-v" + new Date().getTime();
+var filesToCache = [
+  // ... (your other initial paths)
+  "/images/icons/icon-72x72.png",
+  "/images/icons/icon-96x96.png",
+  "/images/icons/icon-128x128.png",
+  "/images/icons/icon-144x144.png",
+  "/images/icons/icon-152x152.png",
+  "/images/icons/icon-192x192.png",
+  "/images/icons/icon-384x384.png",
+  "/images/icons/icon-512x512.png",
+];
+
+self.addEventListener("install", (event) => {
+  this.skipWaiting();
+  event.waitUntil(
+    fetch("/manifest.json")
+      .then((response) => {
+        if (!response.ok) {
+          throw new Error("Failed to fetch manifest");
+        }
+        return response.json();
+      })
+      .then((manifest) => {
+        for (let key in manifest) {
+          if (manifest[key].hasOwnProperty("file")) {
+            filesToCache.push("/build/" + manifest[key].file); // Prefixing with "/build/"
+          }
+        }
+
+        return caches.open(staticCacheName).then((cache) => {
+          return cache.addAll(filesToCache);
+        });
+      })
+      .catch((error) => {
+        console.error("Error while caching files from manifest:", error);
+      }),
+  );
+});
+
+// Clear cache on activate
+self.addEventListener("activate", (event) => {
+  event.waitUntil(
+    caches.keys().then((cacheNames) => {
+      return Promise.all(
+        cacheNames
+          .filter((cacheName) => cacheName.startsWith("pwa-"))
+          .filter((cacheName) => cacheName !== staticCacheName)
+          .map((cacheName) => caches.delete(cacheName)),
+      );
+    }),
+  );
+});
+
+// Serve from Cache
+self.addEventListener("fetch", (event) => {
+  event.respondWith(
+    caches
+      .match(event.request)
+      .then((response) => {
+        return response || fetch(event.request);
+      })
+      .catch(() => {
+        return caches.match("offline");
+      }),
+  );
+});