'use strict';

self.addEventListener('install', function(){
  self.skipWaiting();
});

self.addEventListener('activate', function(){
  // delete all caches
  self.caches
    .keys()
    .then(function(keyList){
      return Promise.all(keyList.map(function(key){ return self.caches.delete(key) }))
    })
    .then(() =>
      self.clients.matchAll().then(function(clients){
        clients.forEach(function(client) => {
          client.postMessage({type: 'versionCheck', version: 'killswitch'})
        });
      })
    )
    .then(function(){
      // unregister self
      self.registration.unregister();
    });
});