From b4fdb969a1717b6d7b3b476edd23bbe2ace6a106 Mon Sep 17 00:00:00 2001
From: Tim Evans <timevans666@gmail.com>
Date: Mon, 20 Jul 2026 14:25:07 +0100
Subject: [PATCH] fix: guard service-worker runtime cache on res.ok/basic +
 waitUntil

---
 public/sw.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/public/sw.js b/public/sw.js
index c00c30b..6a9bfd6 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -14,8 +14,10 @@ self.addEventListener('fetch', (e) => {
   if (e.request.method !== 'GET') return;
   e.respondWith(
     caches.match(e.request).then((hit) => hit || fetch(e.request).then((res) => {
-      const copy = res.clone();
-      caches.open(CACHE).then((c) => c.put(e.request, copy));
+      if (res.ok && res.type === 'basic') {
+        const copy = res.clone();
+        e.waitUntil(caches.open(CACHE).then((c) => c.put(e.request, copy)));
+      }
       return res;
     }).catch(() => caches.match('/index.html')))
   );