通过javascript清除并更新html5应用程序缓存

caches.keys().then(function(keyList) {
  return Promise.all(
    keyList.map(function(key) {
      return caches.delete(key);
    })
  );
});

localStorage.clear();

var request = indexedDB.deleteDatabase('myDatabase');
request.onsuccess = function() {
  console.log('Database deleted successfully');
};
request.onerror = function() {
  console.log('Error deleting database');
};

navigator.serviceWorker.getRegistrations().then(function(registrations) {
  for(let registration of registrations) {
    registration.unregister();
  }
});