webpack.dev.js

const path = require('path')
const webpack = require('webpack')
const merge = require('webpack-merge')
const common = require('./webpack.common')

console.log('Building for dev...')

module.exports = merge(common, {
  mode: 'development',
  output: { filename: 'index.js', chunkFilename: '[name].bundle.js' },
  plugins: [],
  module: {
    rules: [
      {
        test: /\.elm$/,
        exclude: [/elm-stuff/, /node_modules/],
        use: [
          { loader: 'elm-hot-webpack-loader' },
          {
            loader: 'elm-webpack-loader',
            options: {
              debug: true,
              forceWatch: true,
              cwd: __dirname,
            },
          },
        ],
      },
    ],
  },
  devServer: {
    contentBase: path.resolve(__dirname, 'public'),
    historyApiFallback: true,
  },
})