Iframe resizer (using jQuery)

iframe-resizer.js

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
      define(['jquery'],function (jQuery) {
          return (root.iframeResizer = factory(jQuery));
      });
  } else {
      root.iframeResizer = factory(root.jQuery);
  }
}(this, function ($) {
  return function(messageId, minPageHeight, $animatedElements) {
    var timer;

    minPageHeight = minPageHeight || 250;

    return {
      start : function() {
        if(!window.postMessage) return;

        var currentHeight = 0,
            $body = $('body');

        $('html').css('overflow','hidden');

        timer = setInterval(function() {
          var documentHeight = Math.max($body.outerHeight(true), minPageHeight);
          if(documentHeight !== currentHeight && !$animatedElements.filter(':animated').length) {
            window.parent.postMessage(messageId + (documentHeight), '*');
            currentHeight = documentHeight;
          }
        }, 200);
      },
      stop: function() {
        clearInterval(timer);
      }
    }
  }  
}));

Usage

var iframeResizer = require('iframe-resizer');

// To start
iframeResizer('MASRESIZE', 450, arrayOfjQueryEls).start();

// To stop
iframeResizer.stop();