webpack.config.js

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

module.exports = {
    entry: ['whatwg-fetch','./main.js'],
    output: { path: __dirname, filename: 'bundle.js' },
    module: {
        loaders: [
            {
                test: /.jsx?$/,
                loader: 'babel-loader',
                exclude: /node_modules/,
                query: {
                    presets: ['es2015', 'react']
                }
            },
            {
                test: /\.css$/,
                loader: "style-loader!css-loader"
            },
            {
                test: /\.jpe?g$|\.ico$|\.gif$|\.png$|\.svg$|\.woff$|\.ttf$|\.wav$|\.mp3$/,
                loader: 'file-loader?name=[name].[ext]'  // <-- retain original file name
            },
            {
                test: /\.scss$/,
                loaders: ["style-loader", "css-loader", "sass-loader"]
            }
        ]
    },
};