This file brings ES2015 capabilities to ES5 browsers. As you will be using quite a few ES2015 constructs, this is necessary for everything to work:
<script scr="node_modules/core-js/client/shim.min.js"></script>
This file brings ES2015 capabilities to ES5 browsers. As you will be using quite a few ES2015 constructs, this is necessary for everything to work:
<script scr="node_modules/core-js/client/shim.min.js"></script>