Use dev console to call Rutter.create().open()

If javascript not hot reloading try CMD + shift + r to hard reload and usually works.

Run in console: Rutter.create({ publicKey: "2a71f561-1154-4f88-88e6-e61647c7f97e", onSuccess: function(token) { console.log(token)}, dev: { openUrl: "http://localhost:4000" }}).open()