<html>
  <head>
    <title>Hextrapolate</title>
  </head>
  <body>
    <div id='root'>
    </div>
    <script src="/static/bundle.js"></script>
  </body>
</html>

<html>
  <head>
    <meta charset="utf-8" />
    <title>Hextrapolate</title>
  </head>
  <body>
    <div id='root'>
    </div>
    <script src="/static/bundle.js"></script>
  </body>
</html>

Fix charset when "serving" from local filesystem
Fix charset when "serving" from local filesystem

React converts the entity to a UTF-8 character, which works fine when
serving using the Webpack dev server (which presumably passes an HTTP
Content-Type header), but for testing with a local file:// URL, things
don't work unless we explicitly indicate the type.
