{% for item in tree %}{% if item.sectiontitle %}{% capture treeString %}{{ item.section | downcase }}{% endcapture %}{% capture pageURLString %}"{{ page.url }}"{% endcapture %}
<li class="leaf {% if treeString contains pageURLString %}menu-open{% else %}menu-closed{% endif %}"><a href="javascript:void(0)" class="expand-menu "><span class="menu-icon" aria-hidden="true"></span>{{ item.sectiontitle }}</a>
<ul class="nav-sub">
  {% assign tree = item.section %}{% include tree.html %}
</ul>
{% else %}
    <li class="leaf"><a href="{{ item.path }}" class="{% if item.path == page.url and item.nosync != true %}active currentPage{% endif %}">{{ item.title }}</a></li>{% endif %}{% endfor %}