{% if page.title %}<meta property="og:title" content="{{ page.title }}" /><meta itemprop="name" content="{{ page.title }}" />{% endif %}
<meta property="og:type" content="article" />
<meta property="og:url" content="{{ canonical }}" />
<meta property="og:description" content="{{ description | strip_html | condense_spaces | truncate:150 }}" />
{% if page.ogimage %}<meta property="og:image" content="{{ page.ogimage }}" /><meta itemprop="image" content="{{ page.ogimage }}" />{% endif %}
<meta property="og:site_name" content="{{ site.url }}" />
<meta property="article:author" content="http://lenciel.com">
{% if page.date %}<meta property="article:published_time" content="{{ page.date }}" />{% endif %}
{% capture category %}{% if page.categories %}{{ page.categories }}{% endif %}{% endcapture %}
{% if page.categories %}<meta property="article:section" content="{{ page.categories }}" />{% endif %}
{% if page.keywords %}<meta name="keywords" content="{{ page.keywords }}" />{% for keyword in page.keywords %}<meta property="article:tag" content="{{ keyword | replace: ',', '' }}" />{% endfor %}{% endif %}

{% if page.mathjax %}
<script type="text/javascript" src="https://cdn.bootcss.com/mathjax/2.7.7/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
{% endif %}

<script src='{{ site.static_base }}/assets/javascripts/Valine.min.js'></script>
<!-- Prefetch DNS for external assets -->
<link href="https://cdn.lenciel.com" rel="preconnect" crossorigin>
<link rel="dns-prefetch" href="//stats.g.doubleclick.net">
<link rel="dns-prefetch" href="//www.google-analytics.com">
<link rel="dns-prefetch" href="//cdn.lenciel.com">
<link rel="dns-prefetch" href="//cdn.bootcss.com">