Capacitor - Browser plugin: how to have toolbar on web

In my PWA I need the “in app browser” functionality, so I’ve installed Capacitor because I saw this plugin:

The problem is that the page open without the toolbar so I can’t go back in the navigation.
At the moment I’m testing only web version and not Android/iOS too.

Maybe the behaviour (no toolbar) it’s normal on web? or the plugin don’t do what I think it should no?

I’ve followed the example for in this way:

await{ toolbarColor: '#03fc0b', url: '', windowName: '_self' });

I’m doing something wrong?

Thank you