{% assign pages = site.documents | where: "collection", site.theme-settings.collection | where: "chapnum", page.chapnum | where_exp: "page", "page.pagenum != null" | sort: "pagenum" %} {% if page.subsite %} {% assign pages = pages | where: "subsite", page.subsite %} {% endif %} {% assign redirect = pages[0].url | relative_url | uri_escape %} {% include internal/redirect.html redirect=redirect %}