The browser suppresses native confirm()/prompt() when the page isn't the active
tab ('dialog was suppressed because this page is not the active tab'). A
suppressed confirm() returns false, so the overwrite-on-save check silently
cancelled — no dialog, no overwrite. Replaced the prompt+confirm flow with a real
<dialog> save modal (name input + live 'this overwrites' warning, so Save is the
confirmation) and moved delete onto an in-app confirm dialog too. No native
popups in these flows now. Bump cache version.
72 lines
2.1 KiB
JavaScript
72 lines
2.1 KiB
JavaScript
/* Chess Pressure service worker — opt-in offline / instant repeat-visit cache.
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*
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* Only registered when window.CHESS_PWA is true (gated by the ENABLE_CHESS_PWA
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* build flag). When active, repeat visits are served entirely from cache and
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* never hit the server — which also means returning visitors won't appear in
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* the Fly logs, so this is off by default.
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*
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* Bump CACHE on every deploy so clients pick up new assets.
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*/
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const CACHE = "chess-pressure-v29";
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// Same-origin app shell. Cached by canonical path; the fetch handler matches
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// with ignoreSearch so cache-busting query strings (?v=NN) still hit.
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const CORE = [
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"/",
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"/index.html",
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"/app.js",
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"/engine.js",
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"/chess.min.js",
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"/gif.js",
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"/gif.worker.js",
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"/style.css",
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"/games.json",
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"/manifest.json",
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];
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self.addEventListener("install", (event) => {
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event.waitUntil(
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caches.open(CACHE).then((c) => c.addAll(CORE)).then(() => self.skipWaiting()),
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);
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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caches
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.keys()
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.then((keys) => Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k))))
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.then(() => self.clients.claim()),
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);
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});
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self.addEventListener("fetch", (event) => {
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const req = event.request;
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if (req.method !== "GET") return;
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const sameOrigin = new URL(req.url).origin === self.location.origin;
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// Navigations always resolve to the cached app shell (offline-first SPA).
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if (req.mode === "navigate") {
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event.respondWith(
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caches.match("/index.html", { ignoreSearch: true }).then((r) => r || fetch(req)),
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);
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return;
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}
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// Everything else: cache-first, then network (and cache for next time).
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event.respondWith(
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caches.match(req, { ignoreSearch: sameOrigin }).then((cached) => {
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if (cached) return cached;
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return fetch(req)
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.then((resp) => {
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if (resp && (resp.ok || resp.type === "opaque")) {
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const copy = resp.clone();
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caches.open(CACHE).then((c) => c.put(req, copy));
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}
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return resp;
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})
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.catch(() => cached);
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}),
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);
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});
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