serviceworker.js

importScripts(
  'https://storage.googleapis.com/workbox-cdn/releases/6.4.1/workbox-sw.js'
)
workbox.routing.registerRoute(
  new workbox.routing.Route(({ request }) => {
    return request.url.includes('/generate')
  },
  new workbox.strategies.CacheFirst({
    // Use a custom cache name.
    cacheName: 'postr-download',
    plugins: [new workbox.expiration.ExpirationPlugin({
      maxAgeSeconds: 3600
    })]
  })
  )
)