Support multiple domains and redirect only on specific ones

Since some versions we have NUXT_PUBLIC_ROOT_REDIRECT_URL which is great, until now I had been using my reverse proxy to 404 certain routes, the thing is that (as I was doing with the reverse proxy) I only want the redirection to happen on certain domains, say if I enter forms.mypublicdomain.com I want the redirection/block to be performed but if I enter opnform.mylocal.arpa I want nothing to be blocked.

Unfortunately opnform only supports one domain, entering opnform through others doesn’t fully work because we get CORS errors