title: Not allow localstorage to be changed by user
body: <p>I use localstorage to store things like highscore in this game: <a href="http://wacky2048.ga/" rel="nofollow noreferrer">http://wacky2048.ga/</a></p>
  
  <p>If you inspect element and on the top navigation bar (where you see Elements ... Performance), then click the >> button, click Application, you can see all the localstorage items, and if you double click, you can change it. You may need to make a move and refresh.</p>
  
  <p>A lot of people know this trick so the highscore becomes meaningless.</p>
  
  <p>Is there any way to stop this? I store integers and JSON stringified things (in case you want to suggest a encoding method).</p>