{% capture canonical %}{{ site.url }}{% if site.permalink contains '.html' %}{{ page.url }}{% else %}{{ page.url | remove:'index.html' | strip_slash }}{% endif %}{% endcapture %} {% if page.description %} {% capture fb_description %}{{ page.description }}{% endcapture %} {% else %} {% capture fb_description %}{{ content | raw_content }}{% endcapture %} {% endif %}