standardnotes-app/packages/web/web.webpack.dev.js

const { merge } = require('webpack-merge')
const config = require('./web.webpack.config.js')
const mergeWithEnvDefaults = require('./web.webpack-defaults.js')
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin')

module.exports = (env, argv) => {
  const port = argv.port || 3001
  mergeWithEnvDefaults(env)
  return merge(config(env, argv), {
    mode: 'development',
    devtool: process.env.BUILD_TARGET === 'extension' ? 'cheap-module-source-map' : 'inline-source-map',
    optimization: {
      minimize: false,
    },
    output: {
      publicPath: '/',
    },
    plugins: [new ReactRefreshWebpackPlugin()],
    devServer: {
      headers: {
        'Access-Control-Allow-Origin': '*',
      },
      hot: true,
      static: './dist',
      port,
      historyApiFallback: true,
      devMiddleware: {
        writeToDisk: argv.writeToDisk,
      },
    },
  })
}