demonstrate how normal actions can be performed within an `unload` event listener except for breakpoints

unload-legit-actions-demo.js

window.addEventListener('unload', (e) => {
  console.log('unloading!');            // would successfully log to console
  localStorage.setItem('key', 'value'); // would successfully set new item to local storage
  debugger;                             // would fail to break at this point!
});