An introduction to code splitting with Webpack.
Relevant links
Code splitting documentation: https://webpack.js.org/guides/code-splitting-libraries/
Splitting based on routes
http://moduscreate.com/code-splitting-for-react-router-with-es6-imports/
Webpack HTTP/2
https://medium.com/webpack/webpack-http-2-7083ec3f3ce6#.3ahuso4ih
