From d099527114d3c96269d72eee292a262f0472d7b0 Mon Sep 17 00:00:00 2001
From: AmirrezaRezaeii <amirrezarezaeijavidan@gmail.com>
Date: Wed, 22 Apr 2026 12:58:46 +0330
Subject: [PATCH] Strategy: cache then network

---
 public/sw.js | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/public/sw.js b/public/sw.js
index daffab9..ebbc869 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -93,12 +93,28 @@ self.addEventListener("activate", function (event) {
 
 // Strategy: network with cache fallback
 
+// self.addEventListener("fetch", (event) => {
+//   event.respondWith(
+//     fetch(event.request).catch(() => {
+//       return caches.open(CACHE_STATIC_NAME).then((cache) => {
+//         return cache.match(event.request);
+//       });
+//     }),
+//   );
+// });
+
+// Startegy: cache then network
+
 self.addEventListener("fetch", (event) => {
   event.respondWith(
-    fetch(event.request).catch(() => {
-      return caches.open(CACHE_STATIC_NAME).then((cache) => {
-        return cache.match(event.request);
+    caches.match(event.request).then((cache) => {
+      const fetchPromise = fetch(event.request).then((res) => {
+        return caches.open(CACHE_STATIC_NAME).then((cache) => {
+          cache.put(event.request, res.clone());
+          return res;
+        });
       });
+      return cache || fetchPromise;
     }),
   );
 });