2hot2handle

webpack.js

config.devServer = {
    contentBase: config.output.path,
    filename:    'assets/scripts/application.js',
    host:        process.env.HOST,
    hot:         true,
    inline:      true,
    port:        process.env.HOT_PORT,
    progress:    true,
    publicPath:  config.output.publicPath,
    stats:       { colors: true },
    proxy:       [{
        path:    /^(?!.*\.hot-update\.js)(.*)$/,
        target:  'http://' + process.env.HOST + ':' + process.env.PORT + '/'
    }]
};