Try this:
Updated Ajax:
$("#submit").on('click', (function(e){
var postURL = "../Controller/Controller.php?action=create";
$.ajax({
type: "POST",
url: postURL,
data: $('form#data-form').serialize(),
success: function(data){
//
}
});
e.preventDefault();
});
Update Contoller:
create();
}
?>