Simple ajax form using javascript no jQuery

Question

I\'m working with a form for which the mark-up I can\'t change & can\'t use jQuery. Currently the form post the results to a new window. Is it possible to change this to

Answer 1

A modern way using fetch would be:

const formData = new FormData(form);
fetch(form.action, {
  method: 'POST',
  body: formData
});

Note browser support and use this polyfil if IE-support is needed