memoized jQuery ajax promise

Testing jQuery's post method with lodash's memoize method.

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.js"></script>
<script src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
<p>
Open your console to see the asynchronous requests. Lodash's `<a href="https://lodash.com/docs#memoize">memoize</a>` method should cache the promise returned by jQuery's `post` method.
</p>

JavaScript

var iterations = 0;

console.log('-------------START-------------');

(function intervalRequest() {

  var requestData = {
    json: JSON.stringify({
      "name": "jaguar",
      "profession": "scullery maid",
      "sex": "awww yeeeahhh"
    }),
    delay: 5
  };

  var post = _.memoize(function(endpoint, requestData) {
    return $.post(endpoint, requestData, null, 'json');
  }, function() {
    return JSON.stringify(requestData)
  });

  console.log('lodash cache:', post.cache);

  post('/echo/json/', requestData)
    .done(function(responseData) {
      console.log('done:', responseData);
    })
    .always(function(responseData) {
      intervalRequest();
      iterations++;
    });

}());