HTML page with script to test JSONP request.

test-jsonp-request.html

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script>
  var requestUrl = "";
  window.onload = function() {
$.getJSON(requestUrl, {}, function (data) {
           document.write(JSON.stringify(data));
           console.log(data);
       }).error(
           function(jqXHR, statusText, errorThrown) {
               alert(jqXHR.status);
               alert(errorThrown);
           }
       );
  }

</script>