webpack.config.js

const path = require('path');
const webpack = require('webpack');

const ROOT_PATH = path.resolve(__dirname);

module.exports = {
    entry: [
        'babel-polyfill',
        path.resolve(ROOT_PATH, 'src/browser/index'),
    ],
    module: {
        loaders: [
            {
                test: /\.js?$/,
                exclude: /node_modules/,
                loaders: ["react-hot", "babel"],
            },
            {
                test: /\.css$/,
                loader: "style-loader!css-loader"
            }
        ]
    },
    output: {
        publicPath: 'assets',
        filename: 'bundle.js'
    },
    devServer: {
        contentBase: 'http://localhost:8000',
        hot: true,
        inline: true,
        progress: true
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.DefinePlugin({
            "process.env": {
                BROWSER: JSON.stringify(true)
            }
        })
    ]
};