Browser Sync configuration on Laravel Mix 5.5

webpack.mix.js

mix.js('resources/assets/js/app.js', 'public/js')
   .sass('resources/assets/sass/app.scss', 'public/css')
   .browserSync({
       proxy: {
           target: "www.mygreatsitewillmakemerich.local"
       },
       files: [
           'app/**/*',
           'public/**/*',
           'resources/views/**/*',
           'resources/lang/**/*',
           'routes/**/*'
       ]
    });