This starter kit uses Webpack to create the React client app.

• common.config.js: configuration that's shared between modes, mostly "loaders" for different kinds of file
• dev.config.js: enables the dev server for development mode (npm run dev)
  • Enables fallback for client-side routing
  • Configures proxy to the Express backend
• prod.config.js: creates the actual build output for production mode (npm run build)
  • Externalises React/-DOM to a CDN to reduce vendor bundle size