Webpack + Hapi issue

.babelrc

{
	"presets": ["es2015","es2016"],
	"only": ["**/src/ui/**.js", "**/src/server.js"],
	"ignore": "**/node_modules/**.js",
	"sourceMaps": "inline",
	"plugins": [
		["cycle-hmr/xstream", {
			"include": "**/src/ui/**.js",
			"testExportName": "^[A-Z]|default"
		}]
	]
}

webpack.config.js

var webpack = require('webpack'),
	path = require('path'),
	CopyWebpackPlugin = require('copy-webpack-plugin'),
	webpackEnv = require('webpack-env');

var config = {
    context: path.resolve(__dirname),
	devtool: 'source-map',
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.NoErrorsPlugin(),
        new webpack.DefinePlugin(webpackEnv.definitions)
    ],
    module: {
        loaders: [
            {
                test: /\.js$/,
                exclude: /(node_modules|\.tmp|webpack)/,
                loader: 'babel?extends=' + path.resolve(__dirname, '.babelrc')
            },
            {
                test: /\.less$|\.css$/,
                loader: 'style!css?camelCase&minimize&discardDuplicates&-import&modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]!less'
            },
            {
                test: /\.jpe?g$|\.gif$|\.png$|\.wav$|\.mp3$/,
                loader: 'url?limit=100000'
            },
            {
                test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
                loader: "url?limit=10000&mimetype=application/font-woff"
            },
            {
                test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
                loader: "url?limit=10000&mimetype=application/font-woff"
            },
            {
                test: /\.ttf(\?v=\d+\.\d+\.\d+)?/,
                loader: "url?limit=10000&mimetype=application/octet-stream"
            },
            {
                test: /\.eot(\?v=\d+\.\d+\.\d+)?/,
                loader: "file"
            },
            {
                test: /\.svg(\?v=\d+\.\d+\.\d+)?/,
                loader: "url?limit=10000&mimetype=image/svg+xml"
            },
            {
                test: /\.json$/,
                loader: 'json'
            }
        ]
    },
    resolve: {
        modulesDirectories: ['node_modules', 'src/ui', 'assets'],
        extensions: ['', '.js', '.less']
    },
	assets: {}
};

var client = Object.assign({}, config, {
	entry: [
		'./src/client.js',
		'webpack-hot-middleware/client'
	],
	target: 'web',
    output: {
        path: path.resolve(__dirname, '.tmp/'),
        publicPath: '/',
        filename: 'client.js'
    }
});

var server = Object.assign({}, config, {
	entry: [
		'./src/server.js'
	],
	target: 'node',
    output: {
        path: path.resolve(__dirname, '.tmp/'),
        publicPath: '/',
        filename: 'server.js'
    }
});

module.exports = [client, server];