Fix missing fallback title for table of contents

CHANGELOG.md

@@ -6,6 +6,10 @@
 - Update links and fix typos in documentation. [#2186](https://github.com/mmistakes/minimal-mistakes/pull/2186)
 - Add skip links. [#2182](https://github.com/mmistakes/minimal-mistakes/issues/2182)
 
+### Bug Fixes
+
+- Fix missing fallback title for table of contents.
+
 ## [4.16.4](https://github.com/mmistakes/minimal-mistakes/releases/tag/4.16.4)
 
 ### Enhancements

_layouts/single.html

@@ -37,7 +37,7 @@ layout: default
         {% if page.toc %}
           <aside class="sidebar__right {% if page.toc_sticky %}sticky{% endif %}">
             <nav class="toc">
-              <header><h4 class="nav__title"><i class="fas fa-{{ page.toc_icon | default: 'file-alt' }}"></i> {{ page.toc_label | default: site.data.ui-text[site.locale].toc_label }}</h4></header>
+              <header><h4 class="nav__title"><i class="fas fa-{{ page.toc_icon | default: 'file-alt' }}"></i> {{ page.toc_label | default: site.data.ui-text[site.locale].toc_label | default: "On this page" }}</h4></header>
               {% include toc.html sanitize=true html=content h_min=1 h_max=6 class="toc__menu" %}
             </nav>
           </aside>

docs/_docs/18-history.md

@@ -5,7 +5,7 @@ permalink: /docs/history/
 excerpt: "Change log of enhancements and bug fixes made to the theme."
 sidebar:
   nav: docs
-last_modified_at: 2019-06-27T18:46:57-04:00
+last_modified_at: 2019-06-27T19:00:11-04:00
 toc: false
 ---
 
@@ -17,6 +17,10 @@ toc: false
 - Update links and fix typos in documentation. [#2186](https://github.com/mmistakes/minimal-mistakes/pull/2186)
 - Add skip links. [#2182](https://github.com/mmistakes/minimal-mistakes/issues/2182)
 
+### Bug Fixes
+
+- Fix missing fallback title for table of contents.
+
 ## [4.16.4](https://github.com/mmistakes/minimal-mistakes/releases/tag/4.16.4)
 
 ### Enhancements