{% if include.media_url contains "https://youtu.be/" %}
    {% assign media_url = include.media_url | replace: 'https://youtu.be/','https://youtube.com/embed/'%}
{% else %}
    {% assign media_url = include.media_url%}
{% endif %}

<div class="embed-responsive embed-responsive-16by9">
  <iframe src="" allowFullScreen="allowFullScreen" frameBorder="0" class="lazyload embed-responsive-item" data-src="{{media_url}}"></iframe>
</div>