35 lines
1.3 KiB
JavaScript
35 lines
1.3 KiB
JavaScript
const CACHE_NAME = "wtr-shell-v2";
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const SHELL = ["/", "/offline", "/manifest.json", "/icons/icon.svg", "/icons/maskable.svg", "/icons/icon-192.png", "/icons/icon-512.png", "/icons/maskable-512.png"];
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self.addEventListener("install", (event) => {
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event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(SHELL)));
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self.skipWaiting();
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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caches.keys().then((keys) => Promise.all(keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key)))),
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);
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self.clients.claim();
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});
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self.addEventListener("fetch", (event) => {
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if (event.request.method !== "GET") return;
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const url = new URL(event.request.url);
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if (url.pathname.startsWith("/api/imgw/") || url.pathname === "/api/imgw-current") {
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event.respondWith(
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fetch(event.request)
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.then((response) => {
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const copy = response.clone();
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caches.open(CACHE_NAME).then((cache) => cache.put(event.request, copy));
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return response;
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})
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.catch(() => caches.match(event.request)),
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);
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return;
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}
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if (event.request.mode === "navigate") {
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event.respondWith(fetch(event.request).catch(() => caches.match(event.request).then((response) => response || caches.match("/offline"))));
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}
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});
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