Alexander Heldt
4df5b0ec08
The service worker used to skipWaiting() on install and claim clients on activate, so a new build's assets swapped in silently and a long-open tab kept running stale JS. Switch to the standard update flow: the worker now waits until the page sends it a SKIP_WAITING message, and the page shows a "A new version is available — Reload / Later" banner when a new worker reaches "installed" while one is already controlling the tab (that controller check suppresses the first-install prompt). Reload posts SKIP_WAITING and reloads on controllerchange (guarded against a reload loop and against the initial clients.claim on a fresh install); Later dismisses until the next update. Since browsers only auto-check on navigation, also poll registration.update() hourly and on visibilitychange. Bump the cache to v9 so the old cache is cleaned up on activate. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
82 lines
2.3 KiB
JavaScript
82 lines
2.3 KiB
JavaScript
const CACHE = "puppy-tracker-v9";
|
|
const PHOTO_CACHE = "puppy-tracker-photos-v1";
|
|
const ASSETS = [
|
|
"./",
|
|
"./index.html",
|
|
"./style.css",
|
|
"./app.js",
|
|
"./manifest.json",
|
|
"./icon.svg",
|
|
];
|
|
|
|
self.addEventListener("install", (event) => {
|
|
event.waitUntil(
|
|
caches.open(CACHE).then((cache) => cache.addAll(ASSETS))
|
|
);
|
|
// No skipWaiting() here: a new worker stays in "waiting" while an old one is
|
|
// controlling a tab, so the page can prompt before swapping assets out from
|
|
// under it. The page tells us to activate via a SKIP_WAITING message.
|
|
});
|
|
|
|
self.addEventListener("message", (event) => {
|
|
if (event.data && event.data.type === "SKIP_WAITING") self.skipWaiting();
|
|
});
|
|
|
|
self.addEventListener("activate", (event) => {
|
|
event.waitUntil(
|
|
caches.keys().then((keys) =>
|
|
Promise.all(
|
|
keys
|
|
.filter((k) => k !== CACHE && k !== PHOTO_CACHE)
|
|
.map((k) => caches.delete(k))
|
|
)
|
|
)
|
|
);
|
|
self.clients.claim();
|
|
});
|
|
|
|
self.addEventListener("fetch", (event) => {
|
|
const req = event.request;
|
|
if (req.method !== "GET") return;
|
|
|
|
const url = new URL(req.url);
|
|
|
|
// Photos are immutable per UUID — cache-first forever and stuff every
|
|
// successful fetch into a dedicated cache so they survive between visits
|
|
// and are available offline once seen.
|
|
if (url.pathname.includes("/api/photos/")) {
|
|
event.respondWith(
|
|
caches.open(PHOTO_CACHE).then(async (cache) => {
|
|
const cached = await cache.match(req);
|
|
if (cached) return cached;
|
|
try {
|
|
const res = await fetch(req);
|
|
if (res && res.ok) cache.put(req, res.clone());
|
|
return res;
|
|
} catch (err) {
|
|
return cached || Response.error();
|
|
}
|
|
})
|
|
);
|
|
return;
|
|
}
|
|
|
|
// Other API calls: never cache — sync must reflect live server state.
|
|
if (url.pathname.includes("/api/")) return;
|
|
|
|
event.respondWith(
|
|
caches.match(req).then((cached) => {
|
|
if (cached) return cached;
|
|
return fetch(req)
|
|
.then((res) => {
|
|
if (res && res.ok && url.origin === self.location.origin) {
|
|
const clone = res.clone();
|
|
caches.open(CACHE).then((c) => c.put(req, clone));
|
|
}
|
|
return res;
|
|
})
|
|
.catch(() => caches.match("./index.html"));
|
|
})
|
|
);
|
|
});
|