<!-- Polyfills bundle. -->
<% if(polyfillsBundleFile) { %>
<script src="<%= polyfillsBundleFile %>" charset="utf-8"> </script>    
<% } %>

<!-- SystemJS support. -->
<script src="<%= systemJsBundleFile %>" charset="utf-8"> </script>

<!-- Import map -->
<script src="<%= importMapFile%>" type="systemjs-importmap" charset="utf-8"> </script>

<script>
    System.import('<%= indexJsName %>').catch(function(err) { console.error(err); })
</script>