{% if page.subject %}<meta name="keywords" content="{{ page.subject | escape }}" >{% endif %}
{% if page.description %}<meta name="description" content="Item from {{ site.title | escape }}: {{ page.description | truncatewords: 25 | escape }}">{% endif %}
<!-- DC meta -->
<link rel="schema.DCTERMS" href="http://purl.org/dc/terms/" />
{%- assign dc-fields = site.data.config-metadata | where_exp: 'item', 'item.dc_map != nil' -%}
{% for f in dc-fields %}{% if page[f.field] %}<meta name="{{ f.dc_map | xml_escape }}" content="{{ page[f.field] | truncatewords: 25 | xml_escape }}" xml:lang="en" />
{% endif %}{% endfor %}
{% if site.organization-name %}<meta name="DCTERMS.publisher" content="{{ site.organization-name | escape }}" xml:lang="en" />{% endif %}
<!-- Open Graph meta -->
<meta property="og:title" content="{{ page.title | escape }}" />
<meta property="og:type" content="website" />
<meta property="og:description" content="Item from {{ site.title | escape }}. {{ page.description | truncatewords: 30 | escape }}" />
{% if page.image_small or page.image_thumb %}
<meta property="og:image" content="{{ page.image_small | default: page.image_thumb | relative_url }}" />
<meta property="og:image:alt" content="{{ page.title | escape }}" />{% endif %}
<meta property="og:site_name" content="{{ site.title | escape }}" />
<meta property="og:url" content="{{ page.url | absolute_url }}" />
<meta property="og:locale" content="en_US" />
<!-- schema.org JSON-LD -->
<script type="application/ld+json">
{ 
    "@context": "http://schema.org",
    "@type": "CreativeWork",
    {%- assign sc-fields = site.data.config-metadata | where_exp: 'item', 'item.schema_map != nil' -%}
    {% for f in sc-fields %}{% if page[f.field] %}
    "{{ f.schema_map }}": {{ page[f.field] | jsonify }},{% endif %}{% endfor %}
    "isPartOf": {{ site.title | jsonify }},
    {% if page.image_small %}"image": "{{ page.image_small | relative_url }}",{% endif %}
    {% if page.image_thumb %}"thumbnailUrl": "{{ page.image_thumb | relative_url }}",{% endif %}
    "url": {{ page.url | absolute_url | jsonify }}
}
</script> 
<!-- breadcrumbs schema -->
<script type="application/ld+json">{"@context": "http://schema.org", "@type": "BreadcrumbList", "itemListElement": [{ "@type": "ListItem", "position": 1, "item": { "@id": "{{ "/" | absolute_url }}", "name": {{ site.title | jsonify }} } },{ "@type": "ListItem", "position": 2, "item": { "@id": "{{ '/browse/' | absolute_url }}", "name": "Browse Collection" } },{ "@type": "ListItem", "position": 3, "item": { "@id": "{{ page.url | absolute_url }}", "name": {{ page.title | jsonify }} } }] }</script>
