 <meta property="og:title" content="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}" />
  <meta property="og:type" content="website" />
  <meta property="og:image" content="{% if page.cover %}{{ page.cover | prepend: site.baseurl | prepend: site.url }}{% else %}{{ site.protocols.fb_image | prepend: site.baseurl | prepend: site.url }}{% endif %}" />
  <meta property="og:image:type" content="{{ site.protocols.fb_image_type }}" />
  <meta property="og:image:width" content="{{ site.prot