pelican-elegant/templates/_includes/smo_metadata.html

{% macro smo_metadata(article) %}
<meta property="og:title" content="{{ article.title|striptags|e }} {%if article.subtitle %} - {{ article.subtitle|striptags|e }} {% endif %}"/>
<meta property="og:type" content="article" />
<meta property="og:url" content="{{ SITEURL }}/{{ article.url }}" />
<meta property="og:description" content="{{article.summary|striptags|e}}" />
<meta property="og:site_name" content="{{ SITENAME|striptags|e }}" />
<meta property="og:article:author" content="{{ article.author }}" />
{% if article.date %}
<meta property="og:article:published_time" content="{{ article.date.isoformat() }}" />
{% endif %}
{% if article.locale_modified and article.modified %}
<meta property="" content="{{ article.modified.isoformat() }}" />
{% endif %}
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="{{ article.title|striptags|e }} {%if article.subtitle %} - {{ article.subtitle|striptags|e }} {% endif %}">
<meta name="twitter:description" content="{{article.summary|striptags|e}}">
{% if article.featured_image %}
<meta property="og:image" content="{{article.featured_image}}" />
<meta name="twitter:image" content="{{article.featured_image}}" >
{% else %}
{% from '_includes/_defaults.html' import FEATURED_IMAGE with context %}
    {% if FEATURED_IMAGE %}
<meta property="og:image" content="{{FEATURED_IMAGE}}" />
<meta name="twitter:image" content="{{FEATURED_IMAGE}}" >
    {% endif %}
{% endif %}
{% endmacro %}