https://cdnjs.cloudflare.com/ajax/libs/d3/4.7.0/d3.min.js
https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react.min.js
https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-dom.min.js
https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.23.1/babel.min.js