Ajax Request Promise

gistfile1.js

var deferred = $.Deferred();
var ajax = $.ajax({url: '/config'}).
  done(function(data) {
    console.log('Data: ' + data);
    deferred.resolve(data);
  }).
  fail(function (xhr, status) {
    console.log("Fail: " + xhr.status);
    deferred.fail();
  });

$.when(ajax).done(function(d) {
  console.log('Arguments: ' + d);
  console.log(arguments);
});

console.log('Deferred state: ' + deferred.state());