const { merge } = require('webpack-merge') const common = require('./webpack.common.js') const TerserPlugin = require('terser-webpack-plugin') module.exports = merge(common, { mode: 'development', devtool: 'source-map', devServer: { historyApiFallback: true, noInfo: true, overlay: true, }, optimization: { minimizer: [ new TerserPlugin({ parallel: true, cache: true, extractComments: false, terserOptions: { ecma: 6, }, }), ], }, })