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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,75 @@ | ||
| // The following is yoinked from: | ||
| // https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Offline_Service_workers | ||
|
|
||
| const cacheName = "ltlr-2023-03-06"; | ||
| const contentToCache = [ | ||
| "FileSaver.min.js", | ||
| "android-chrome-192x192.png", | ||
| "android-chrome-512x512.png", | ||
| "apple-touch-icon-precomposed.png", | ||
| "apple-touch-icon.png", | ||
| "favicon-16x16.png", | ||
| "favicon-32x32.png", | ||
| "favicon-48x48.png", | ||
| "favicon.ico", | ||
| "index.data", | ||
| "index.html", | ||
| "index.js", | ||
| "index.wasm", | ||
| "maskable-196x196.png", | ||
| "site.webmanifest", | ||
| "sw.js", | ||
| ]; | ||
|
|
||
| self.addEventListener("install", (e) => { | ||
| console.log("[Service Worker] Install"); | ||
|
|
||
| e.waitUntil( | ||
| (async () => { | ||
| const cache = await caches.open(cacheName); | ||
|
|
||
| console.log("[Service Worker] Caching content"); | ||
|
|
||
| await cache.addAll(contentToCache); | ||
| })() | ||
| ); | ||
| }); | ||
|
|
||
| self.addEventListener("fetch", (e) => { | ||
| e.respondWith( | ||
| (async () => { | ||
| const r = await caches.match(e.request); | ||
|
|
||
| console.log(`[Service Worker] Fetching resource: ${e.request.url}`); | ||
|
|
||
| if (r !== undefined) { | ||
| return r; | ||
| } | ||
|
|
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| const response = await fetch(e.request); | ||
| const cache = await caches.open(cacheName); | ||
|
|
||
| console.log(`[Service Worker] Caching new resource: ${e.request.url}`); | ||
|
|
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| cache.put(e.request, response.clone()); | ||
|
|
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| return response; | ||
| })() | ||
| ); | ||
| }); | ||
|
|
||
| self.addEventListener("activate", (e) => { | ||
| e.waitUntil( | ||
| caches.keys().then((keyList) => { | ||
| return Promise.all( | ||
| keyList.map((key) => { | ||
| if (key === cacheName) { | ||
| return; | ||
| } | ||
|
|
||
| return caches.delete(key); | ||
| }) | ||
| ); | ||
| }) | ||
| ); | ||
| }); |