Custom webpack config with browsersync

webpack.config.js

var webpack = require("webpack");
var path = require("path");
var ExtractTextPlugin = require("extract-text-webpack-plugin");
var BrowserSyncPlugin = require('browser-sync-webpack-plugin');

module.exports = {
    entry: {
        app: [
            "./resources/js/app.js",
            "./resources/css/app.styl"
        ]
    },
    output: {
        path: path.resolve(__dirname, "./public_html"),
        filename: "/js/[name].js"
    },
    module: {
        rules: [
            {
                test: /\.css/,
                use: "css-loader"
            },
            {
                test: /\.styl$/,
                use: ExtractTextPlugin.extract({
                    use: ["css-loader", "stylus-loader"]
                })
            },
            {
                test: /\.js$/,
                exclude: /node_modules/
            }
        ]
    },
    plugins: [
        new webpack.optimize.UglifyJsPlugin(),
        new ExtractTextPlugin("/css/[name].css"),
        new webpack.LoaderOptionsPlugin({
            minimize: true
        }),
        new BrowserSyncPlugin({
          host: 'localhost',
          port: 3000,
          proxy: "http://test.dev:80",
          notify: false
        })
    ]
}