{% if page.title %}
{{ assign title = page.title | join: " — " | join: site.title }}
{% else %}
{{ assign title = site.title | join: " — " | join: site.subtitle }}
{% endif %}
{{ title | escape }}
{% assign description = page.excerpt | default: site.description | strip_html | normalize_whitespace | truncate: 160 | escape %}
{% assign image = page.image | default: '/apple-touch-icon.jpg' | absolute_url %}
{% if page.url == "/404.html" %}
{% endif %}