{% if article is defined %}
   <meta property="og:url" content="{{ article.url }}" />
   <meta property="og:title" content="{{ article.title|striptags }}" />
   <meta property="og:description" content="{{ article.subtitle|striptags }}" />
   <meta property="og:type" content="article" />
   {% if article.image is defined %}
      <meta property="og:image" content="{{ article.image }}" />
   {% else %}
      <meta property="og:image" content="{{ SITEURL }}/{{ PODCAST_LOGO }}" />
   {% endif %}
   {% if article.m4a is defined %}
      <meta property="og:audio" content="{{ SITEURL }}/{{ article.m4a }}"/>
      <meta property="og:audio:type" content="audio/aac" />
   {% endif %}
{% else %}
   <meta property="og:url" content="{{ SITEURL }}" />
   <meta property="og:title" content="{{ SITENAME }}" />
   <meta property="og:description" content="{{ SITE_DESCRIPTION }}" />
   <meta property="og:image" content="{{ SITEURL }}/{{ LOGO }}" />
   <meta property="og:type" content="website" />
{% endif %}

{% if article is defined %}
   <meta property="og:url" content="{{ SITEURL }}/{{ article.url }}" />
   <meta property="og:title" content="{{ article.title|striptags }}" />
   <meta property="og:description" content="{{ article.subtitle|striptags }}" />
   <meta property="og:type" content="article" />
   {% if article.image is defined %}
      <meta property="og:image" content="{{ article.image }}" />
   {% else %}
      <meta property="og:image" content="{{ SITEURL }}/{{ PODCAST_LOGO }}" />
   {% endif %}
   {% if article.m4a is defined %}
      <meta property="og:audio" content="{{ SITEURL }}/{{ article.m4a }}"/>
      <meta property="og:audio:type" content="audio/aac" />
   {% endif %}
{% else %}
   <meta property="og:url" content="{{ SITEURL }}" />
   <meta property="og:title" content="{{ SITENAME }}" />
   <meta property="og:description" content="{{ SITE_DESCRIPTION }}" />
   <meta property="og:image" content="{{ SITEURL }}/{{ LOGO }}" />
   <meta property="og:type" content="website" />
{% endif %}

Fix article URL for OpenGraph.
Fix article URL for OpenGraph.
