PufokReactAppMirror/webpack.config.js

const config = {
  mode: 'production', // "production" | "development" | "none"
  resolve: {
    extensions: ['*', '.mjs', '.js', '.json'],
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
    ],
  },
};

module.exports = config;