var webpack = require('webpack'); var base = require('./base.config'); var config = base('production'); // production overrides go here config.plugins.push(new webpack.DefinePlugin({ 'process.env': { NODE_ENV: JSON.stringify('production'), }, })); // See https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/config/webpack.config.prod.js. config.plugins.push(new webpack.optimize.UglifyJsPlugin({ sourceMap: true, compress: { screw_ie8: true, warnings: false }, mangle: { screw_ie8: true }, output: { comments: false, screw_ie8: true }, })); module.exports = config;