npm install
The build process will generate the service worker
npm run build
runtimeCaching: [
{
urlPattern: new RegExp('(https://fonts.googleapis.com|https://unpkg.com)'),
handler: 'staleWhileRevalidate'
},
{
urlPattern: new RegExp('https://api.cryptonator.com/api/'),
handler: 'networkFirst'
},
]