sw.js

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'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb1.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb2.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb3.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb4.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb5.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb6.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3/Gb7.mp3', 'midi-js-soundfonts/selection/MusyngKite/acoustic_grand_piano-mp3.js', 'favicon.ico', 'home-appicon.png', 'home-small.png', 'index.html', 'logo192.png', 'logo512.png', 'robots.txt', 'speakClient.js', 'speakGenerator.js', 'speakWorker.js', 'textsearch_index.json', 'close.png', 'arrow-up.png']//// RESOURCES_LIST_MARKER
const addResourcesToCache = async (resources) => {
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  //console.log('add to cache',resources,cache)
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};

const putInCache = async (request, response) => {
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};

const cacheFirst = async ({ request, preloadResponsePromise, fallbackUrl }) => {
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  // Next try to get the resource from the network
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    // response may be used only once
    // we need to save clone to put one copy in cache
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    return responseFromNetwork;
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    const fallbackResponse = await caches.match(fallbackUrl);
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};

const enableNavigationPreload = async () => {
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};

self.addEventListener('activate', (event) => {
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});

self.addEventListener('install', (event) => {
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});

self.addEventListener('fetch', (event) => {
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      preloadResponsePromise: event.preloadResponse,
      fallbackUrl: '/home.png',
    })
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});
//348.29 kB  build/static/js/main.bd147af4.js
  //25.61 kB   build/static/css/main.9a0860f6.css
  //1.78 kB    build/static/js/787.1b9724ac.chunk.js