'Storage' Event on localstorage

LocalStorageEvent.js

/**
 * This is called when setItem(), removeItem(), or clear() changes something on localstorage
 * This event not triggered for the tab/window where the event is initiated. It is triggered in other tabs
 */
localStorage.setItem('locKey', '1');

var fn =  function (event) {
  if (event.key == 'locKey') {
      console.log("Old Value : " + event.oldValue);
      console.log("New Value : " + event.newValue);
      console.log("Url : " + event.url);
  }
};

window.addEventListener('storage', fn, false);