service-worker.js

const CACHE_NAME = 'kthoom:v5';

let urlsToCache = [
  '.',
  'code/bitjs/archive/archive.js',
  'code/bitjs/archive/common.js',
  'code/bitjs/archive/compress.js',
  'code/bitjs/archive/decompress.js',
  'code/bitjs/archive/decompress-internal.js',
  'code/bitjs/archive/events.js',
  'code/bitjs/archive/rarvm.js',
  'code/bitjs/archive/unrar.js',
  'code/bitjs/archive/untar.js',
  'code/bitjs/archive/unzip.js',
  'code/bitjs/archive/webworker-wrapper.js',
  'code/bitjs/archive/zip.js',
  'code/bitjs/file/sniffer.js',
  'code/bitjs/image/webp-shim/webp-shim.js',
  'code/bitjs/image/webp-shim/webp-shim-module.js',
  'code/bitjs/image/webp-shim/webp-shim-module.wasm',
  'code/bitjs/io/bitbuffer.js',
  'code/bitjs/io/bitstream.js',
  'code/bitjs/io/bytebuffer.js',
  'code/bitjs/io/bytestream.js',
  'code/comics/comic-book-binder.js',
  'code/comics/comic-book-page-sorter.js',
  'code/common/helpers.js',
  'code/common/dom-walker.js',
  'code/epub/epub-allowlists.js',
  'code/epub/epub-book-binder.js',
  'code/metadata/book-metadata.js',
  'code/metadata/metadata-editor.js',
  'code/metadata/metadata-viewer.js',
  'code/pages/long-strip-page-setter.js',
  'code/pages/one-page-setter.js',
  'code/pages/page-container.js',
  'code/pages/page-setter.js',
  'code/pages/two-page-setter.js',
  'code/pages/wide-strip-page-setter.js',
  'code/book-binder.js',
  'code/book-events.js',
  'code/book-pump.js',
  'code/book-viewer.js',
  'code/book-viewer-types.js',
  'code/book.js',
  'code/config.js',
  'code/file-ref.js',
  'code/kthoom-google.js',
  'code/kthoom-ipfs.js',
  'code/kthoom-messages.js',
  'code/kthoom.css',
  'code/kthoom.js',
  'code/main.js',
  'code/menu.js',
  'code/page.js',
  'code/reading-stack.js',
  'images/logo-192.png',
  'images/logo.png',
  'images/logo.svg',
  'index.html',
  'privacy.html',
  'kthoom.webmanifest',
];

self.addEventListener('install', (evt) => {
  evt.waitUntil(async () => {
    const cache = await caches.open(CACHE_NAME);
    await cache.addAll(urlsToCache);
  });
});

self.addEventListener('fetch', (evt) => {
  evt.respondWith(async function () {
    try {
      const networkResponse = await fetch(evt.request);
      if (evt.request.method === 'GET') {
        const cache = await caches.open(CACHE_NAME);
        evt.waitUntil(cache.put(evt.request, networkResponse.clone()));
      }
      return networkResponse;
    } catch (err) {
      return caches.match(evt.request);
    }
  }());
});