How does Inertia.js connects my Laravel backend on a domain with my Vue.js project on another domain ?
Or am I trying to do something Inertia.js is not made for ?
How does Inertia.js connects my Laravel backend on a domain with my Vue.js project on another domain ?
Or am I trying to do something Inertia.js is not made for ?
you answered your own question - Inertia is not for splitting the frontend from your backend. It's meant to couple the backend and frontend just like if you were to use blade.
From https://inertiajs.com:
Build single-page apps, without building an API. Inertia.js lets you quickly build modern single-page React, Vue and Svelte apps using classic server-side routing and controllers.