// Clean-up for returning visitors. An earlier version of this site may have registered a
// service worker in their browser; this file replaces it, clears its caches and removes
// itself. Visitors who never had one are not affected: nothing registers this file.

self.addEventListener('install', () => self.skipWaiting())

self.addEventListener('activate', (event) => {
  event.waitUntil(
    (async () => {
      const names = await caches.keys()
      await Promise.all(names.map((name) => caches.delete(name)))
      await self.registration.unregister()
      const windows = await self.clients.matchAll({ type: 'window' })
      windows.forEach((client) => client.navigate(client.url))
    })()
  )
})