make service worker install resilient to cache failures

Use Promise.allSettled instead of addAll so a single failed asset
doesn't prevent the SW from installing (needed for push notifications).

Co-Authored-By: Claude Opus 4.6 <[email protected]>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/service-worker.js b/src/service-worker.js
index 3c1ae0ac..ca0d472b 100644
--- a/src/service-worker.js
+++ b/src/service-worker.js
@@ -22,7 +22,13 @@ self.addEventListener("install", (event) => {
   event.waitUntil(
     caches
       .open(CACHE_BUILD)
-      .then((cache) => cache.addAll([...build, ...ESSENTIAL_STATIC]))
+      .then((cache) =>
+        Promise.allSettled(
+          [...build, ...ESSENTIAL_STATIC].map((url) =>
+            cache.add(url).catch(() => {}),
+          ),
+        ),
+      )
       .then(() => self.skipWaiting()),
   );
 });