<head>
  <script type="text/coffeescript">
    abc = {
      def: 42
    }
  </script>
  <script type='text/coffeescript'>
    abc = {
      def: 42
    }
  </script>
  <script type=text/coffeescript>
    abc = {
      def: 42
    }
  </script>
</head>