<meta content="{{ site.title }}" property="og:site_name" />
{% if page.title %}
<meta content="{{ page.title }}" property="og:title" />
{% else %}
<meta content="{{ site.title }}" property="og:title" />
{% endif %}
<meta content="website" property="og:type" />
{% if page.description %}
<meta content="{{ page.description }}" property="og:description" />
{% else %}
<meta content="{{ site.description }}" property="og:description" />
{% endif %} {% if page.url %}
<meta content="{{ site.url }}{{ page.url }}" pro