title: jquery ajax success result is null
body: <p>I am doing an ajax call using jquery to get data in json format. the success callback function is called but the data is empty.</p>
  
  <pre><code>$(document).ready(function () {
      $.ajax({
          url: "http://apps.sungardhe.com/StudentResearch/public/Research.svc/Schools",
          type: "GET",
          contentType: "application/json; charset=utf-8",
          dataType: "json",
          success: cbSchools
      });
  });
  
  function cbSchools(data) {
      if (data == null) {
          alert("data is null");
          return;
      }
      for (var school in data) {
          $("#ddSchool").append("&lt;option value='" + data[school].ShortName + "'&gt;" + data[school].ShortName + "&lt;/option&gt;");
      }
  }
  </code></pre>
  
  <p>using fiddler I see that the response is actually returning the json data but for some reason the jquery result object is null. can anyone tell me why?</p>