For now, this hack seems to work. Run these commands in the browser console:

     var form = $('#post').serialize();
     localStorage.setItem('startuplister', JSON.stringify(form));

Then when you navigate back, do:

     var form = JSON.parse(localStorage.getItem('startuplister'));
     var s = document.createElement('script');
     s.src = 'https://cdn.rawgit.com/kflorence/jquery-deserialize/master/src/jquery.deserialize.js';
     document.getElementsByTagName('head')[0].appendChild(s);
     $('#post').deserialize(form);