webpack.config.js

const path = require('path');
const HtmlWebPackPlugin = require("html-webpack-plugin");
const CopyPlugin = require('copy-webpack-plugin');


module.exports = {

    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: "babel-loader"
                }
            },

            {
                test: /\.html$/,
                use: [
                    {
                        loader: "html-loader",
                        options: { minimize: true }
                    }
                ]
            },

            {
                test: /\.css$/,
                use: [{ loader: 'style-loader' }, { loader: 'css-loader' }]
            }
        ]
    },

    devServer: {
        contentBase: path.join(__dirname, 'dist'),
        compress: true,
        port: 9000
    },

    plugins: [
        new HtmlWebPackPlugin({
            template: "./src/index.html",
            filename: "./index.html"
        }),
        new CopyPlugin([{ from: 'CNAME', to: '.' }])
    ]
};