Shopify Trailing Slash (SEO Optimisation)

shopify-canonical.liquid

  {% if template contains 'collection' and current_tags %}
  	<meta name="robots" content="noindex" />
  	<link rel="canonical" href="{{ shop.url }}{{ collection.url }}" />
  {% elsif template contains 'blog' and current_tags %}
  	<meta name="robots" content="noindex" />
  	<link rel="canonical" href="{{ shop.url }}{{ blog.url }}" />
  {% else %}
    {%- if canonical_url != blank  -%}
        <link rel="canonical" href="{{ canonical_url }}" />
    {% endif %}
  {%- endif -%}