如何在html文件中访问在manifest.json中映射的文件？

<script>
  if ('serviceWorker' in navigator) {
    navigator.serviceWorker.register('/service-worker.js')
      .then(function(registration) {
        console.log('Service Worker 注册成功:', registration);
      })
      .catch(function(error) {
        console.log('Service Worker 注册失败:', error);
      });
  }
</script>

self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.match(event.request)
      .then(function(response) {
        if (response) {
          return response;
        }
        return fetch(event.request);
      })
  );
});

{
  "name": "My App",
  "short_name": "App",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#000000",
  "icons": [
    {
      "src": "/icon.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ],
  "cache": [
    "/index.html",
    "/styles.css",
    "/script.js"
  ]
}