How to make a POST request using JS, with a transition to the page and a redirect?

Question

AJAX

The web server accepts JSON using the POST method for a user authorization request, and in response returns HTTP Status 302 and redirects to the URL specified in JSON, passing the token in the URL hash and header.
Is it possible to make such a request (with a transition to the page) in the browser? If not, what should the implementation look like?