Is there any way to preserve the default behavior of a form POST submit action in a javascript http request? Normally when I submit the forms, the url is redirected to the action and the page is replaced with the response html, but if you use preventDefault() or return false on a submit event you will get the response in HTML sent as a string to the callback.

Right now I have to add some extra data to my form submission, but I would like to update the page based on the response.

  $("#"+target).on('submit', function (e)

    const counselors_list = counselors.list.map(e=>e.name);
    const groups_list = ...
    const data = $(this).serialize() + "&" + $.param({patient: {counselors: counselors_list, groups_attended: groups_list}});

    $.post(action, data, e=>e)//Data gets returned as e, instead of updating the page 

    return false;
  });

The only way I can think of is replacing the whole DOM with the response, but that seems very hacky. Is there any way to preserve the default form behavior while still adding this data?