{% if TWITTER_CARDS and USE_OPEN_GRAPH %}

    {# Do not include duplicates tag with og ones. #}

    {# Twitter is able to infer them from og. #}

    <meta name="twitter:dnt" content="on">

    <meta name="twitter:card" content="summary">

    {% if TWITTER_USERNAME %}

        <meta name="twitter:site" content="@{{ TWITTER_USERNAME }}">

        <meta name="twitter:creator" content="@{{ TWITTER_USERNAME }}">

    {% endif %}

    <meta name="twitter:domain" content="{{ SITEURL }}">

    {% if article %}

        {% if article.og_image %}

            <meta property="twitter:image"

                  content="{{ SITEURL }}/{{ article.og_image }}"/>

        {% elif OPEN_GRAPH_IMAGE %}

            <meta property="twitter:image"

                  content="{{ SITEURL }}/{{ OPEN_GRAPH_IMAGE }}"/>

        {% endif %}

    {% elif page %}

        {% if page.og_image %}

            <meta property="twitter:image"

                  content="{{ SITEURL }}/{{ page.og_image }}"/>

        {% elif OPEN_GRAPH_IMAGE %}

            <meta property="twitter:image"

                  content="{{ SITEURL }}/{{ OPEN_GRAPH_IMAGE }}"/>

        {% endif %}

    {% endif %}

{% endif %}