I cannot make magnific popup work for some reason getting "The image could not be loaded" all the time. The image url is "undefined".
<div class="album">
<a href="http://lorempixel.com/1024/768/?a=1">
<img src="http://lorempixel.com/168/168/?a=1" />
</a>
<a href="http://lorempixel.com/1024/768/?a=2">
<img src="http://lorempixel.com/168/168/?a=2" />
</a>
<a href="http://lorempixel.com/1024/768/?a=3">
<img src="http://lorempixel.com/168/168/?a=3" />
</a>
</div>
<script>
$(function() {
$('div.album').magnificPopup({ type: 'image' });
});
</script>
Changed the code to:
$(function() {
$('div.album').magnificPopup({delegate: 'a', type: 'image' });
});
As from http://dimsemenov.com/plugins/magnific-popup/documentation.html#initializing_popup
The problem was you referred to the container instead of the 'a' element which contains the link to the image.