anchor.diff:    <body>
       <main>
         <div class="header">
  -        <img src="http://www.gravatar.com/avatar/blah.jpg?d=blank" id="userAvatar" class="avatar">
  +        <img src="//www.gravatar.com/avatar/blah.jpg?d=blank" id="userAvatar" class="avatar">
           <img src="/arrow.png" class="arrow">
  -        <img src="http://www.gravatar.com/avatar/<%= admin_hash %>.jpg?s=120" class="avatar">
  +        <img src="//www.gravatar.com/avatar/<%= admin_hash %>.jpg?s=120" class="avatar">
         </div>
         <form action="/charge" method="POST">
           <label class="form-item">
  
positive.code:         Powered by <a href="https://github.com/lord/cashin">Cashin</a>
        </div>
      </main>
      <script src="http://code.jquery.com/jquery-2.1.4.js"></script>
      <script src="/md5.js"></script>
      <script src="https://checkout.stripe.com/checkout.js"></script>
      <script>
  
negative.code: 
          var handler = StripeCheckout.configure({
            key: '<%= ENV["STRIPE_API_PUBLIC_KEY"] %>',
            image: '//www.gravatar.com/avatar/<%= admin_hash %>.jpg?s=120',
            token: function(token) {
              updateButton('sending');
              setEnabled($('input, form'), false);
  