Function attachUnloadHandler

app/public/socketcluster-client.js:286–291

()

  let isUnloadHandlerAttached = false;

  let attachUnloadHandler = () => {
    if (!isUnloadHandlerAttached) {
      isUnloadHandlerAttached = true;
      global.addEventListener('beforeunload', unloadHandler, false);
    }
  };

  let detachUnloadHandler = () => {
    if (isUnloadHandlerAttached) {