gistfile1.html

<script type="text/javascript">
$(function() {

    $('#testform').submit(function() {
        $.ajax({
          type: "POST",
          contentType: "application/json; charset=utf-8",
          dataType: "json",
          url: "{{ url('home') }}foo",
          data: '{ "id": "1234", "name": "John Doe" }'
        }).done(function() {
          alert( "Done!" );
        });
        return false;
    });

});
</script>