Case statement for article template to build accessible breadcrumbs - https://www.shopify.com/partners/blog/breadcrumb-navigation

accessible-breadcrumbs-case-article.liquid

{% when 'article' %}

    <li>{{ blog.title | link_to: blog.url }}</li>
    <li>
      <a href="{{ article.url }}" aria-current="page">{{ article.title }}</a>
    </li>