title: Magnific Popup content won't display on iOS
body: <p>I'm working on a site (<a href="http://dev.tlkmultimedia.com" rel="nofollow">http://dev.tlkmultimedia.com</a>) using a template that uses magnific popup. I've got vimeo, youtube and photos working on my laptop and I've tested it in iPad/iPhone emulation on desktop browsers. However, when I try it on my actual iPad or iPhone I am met with a blank black lightbox. 
  Here's my initialize JS:</p>
  
  <pre><code> // Example with multiple objects
  $(document).ready(function() {
  $('.popup-youtube, .popup-vimeo, .popup-gmaps').magnificPopup({
      disableOn: 700,
      type: 'iframe',
      mainClass: 'mfp-fade',
      removalDelay: 160,
      preloader: false,
  
      fixedContentPos: false
  });
  });
  </code></pre>
  
  <p>Thanks in advance for any help I receive. Not terribly familiar with this plugin and would love to understand what I'm doing wrong. </p>