{%- capture pageURL -%}{{ page.url | replace:'index.html','' | absolute_url }}{%- endcapture -%}
{%- capture metaTitle -%}
{%- if page.title -%}
{{ page.title }}
{%- else -%}
{{ site.meta_title }}
{%- endif -%}
{%- endcapture -%}
{%- assign metaTitle = metaTitle | strip_html | normalize_whitespace -%}
{%- capture metaDescription -%}
{%- if page.meta_description -%}
{{ page.meta_description }}
{%- else -%}
{{ site.meta_description }}
{%- endif -%}
{%- endcapture -%}
{%- assign metaDescription = metaDescription | strip_html | normalize_whitespace | truncate: 160 -%}
{%- capture metaImage -%}
{%- if page.meta_image -%}
{{ page.meta_image | absolute_url }}
{%- else -%}
{{ site.meta_image | absolute_url }}
{%- endif -%}
{%- endcapture -%}
{% comment %}
Browser tags
{%- endcomment -%}
{{ metaTitle }}
{% comment %}
Open Graph
{%- endcomment -%}
{% comment %}
Twitter specific
{%- endcomment -%}
{% comment %}
Optional tags
Facebook:
- https://developers.facebook.com/docs/sharing/webmasters
Twitter:
- https://dev.twitter.com/cards/overview
- https://developer.twitter.com/en/docs/tweets/optimize-with-cards/overview/markup.html
{%- endcomment -%}
{% comment %}
Canonical tag prevents content duplication for SEO
{%- endcomment -%}