{% capture categories %} {% if post %} {% for category in post.categories %} {{ category | join: "/" }}{% unless forloop.last %} {% endunless %} {% endfor %} {% else %} {% for category in page.categories %} {{ category | join: "/" }}{% unless forloop.last %} {% endunless %} {% endfor %} {% endif %} {% endcapture %} {% capture category_size %}{{ categories | strip_newlines | replace: ' ', '' | size }}{% endcapture %} {% unless category_size == '0' %} {{ categories }} {% endunless %}