问服务工作者缓存进度

EN

// activate with notification TO DOM (!)
global.addEventListener('activate', event => {
  event.waitUntil(async function() {
    await global.clients.claim();
    delay(5000).then(() => {
      data = 'activated';
      console.log('activate msg => dom: ' + data);
      global.clients.matchAll().then(all => all.map(client => client.postMessage(data)));
    });
  }());
});

navigator.serviceWorker.addEventListener('message', function(event) {
  console.log('sw message: ' + event.data);
  if ( event.data === 'activated' ) {
    somefunctions();
  }
});