Create new Parse.com object using REST API and POST

<!-- in summary, 3 things:
 0. set the request headers, application/json may or may not be needed
 1. make sure you enter the REST-API-KEY not the Javascript key
 2. 'quote' the JSON structure, else you get an invalid JSON, 400 message
-->
    var serverUrl = 'https://api.parse.com/1/classes/Test';
    alert("before ajax");
    $.ajax({
      type: "POST",
      url: serverUrl,
      beforeSend: function(request) {
      request.setRequestHeader("X-Parse-Application-Id", 'MY-APP-ID');
      request.setRequestHeader("X-Parse-REST-API-Key", 'MY-REST-API-KEY');
      request.setRequestHeader("Content-Type","application/json");
    },
    data: '{"Sport":"Cricket","Comment":"super popular"}',
    success: function(msg){
       alert('yay' + JSON.stringify(msg));
    },
    error: function(msg){
       alert('boo' + JSON.stringify(msg));
    }
    });
    alert("executed parsePost");
    }