Scotchbox and Browsersync

Hi,

I am using Scotchbox to create a Laravel app. I run the following.

elixir(function(mix) {
    mix.sass('app.scss')
    .browserSync();
});

10:34:53] Starting 'watch'...
[10:34:53] Finished 'watch' after 9.94 ms
[BS] Proxying: http://local.dev
[BS] Access URLs:
 ------------------------------------
       Local: http://localhost:3000
    External: http://xx.xx.xx.xxx:3000
 ------------------------------------
  UI: http://localhost:3001
 External: http://xx.xx.xx.xxx:3001
 ------------------------------------

I can see the browsersync UI at http://localhost:3001/ but the site hangs on http://localhost:3000 with a white screen. The same for the

The site resolves normally at http://192.168.33.10/public.

Am I missing something, should a server by installed to run on localhost:3000? It's the same for the external. I can see the UI but not the site.

Many thanks.