diff --git a/CHANGELOG.md b/CHANGELOG.md
index da4c4aff..169eb0ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [3.2.3](https://github.com/mmistakes/minimal-mistakes/releases/tag/3.2.3)
+
+### Enhancement
+
+- Add [Discourse](https://www.discourse.org/) as a commenting provider [#335](https://github.com/mmistakes/minimal-mistakes/pull/335)
+
 ## [3.2.2](https://github.com/mmistakes/minimal-mistakes/releases/tag/3.2.2)
 
 ### Enhancement
diff --git a/_config.yml b/_config.yml
index d3932ea6..01346491 100644
--- a/_config.yml
+++ b/_config.yml
@@ -18,9 +18,11 @@ teaser                   : # filename of teaser fallback teaser image placed in
 # breadcrumbs            : false # true, false (default)
 words_per_minute         : 200
 comments:
-  provider               : # false (default), "disqus", "facebook", "google-plus", custom"
+  provider               : # false (default), "disqus", "discourse", "facebook", "google-plus", custom"
   disqus:
     shortname            : # https://help.disqus.com/customer/portal/articles/466208-what-s-a-shortname-
+  discourse:
+    server               : # https://meta.discourse.org/t/embedding-discourse-comments-via-javascript/31963 , e.g.: meta.discourse.org
   facebook:
     # https://developers.facebook.com/docs/plugins/comments
     appid                :
diff --git a/_includes/archive-single.html b/_includes/archive-single.html
index 60b63f91..a3f5272e 100644
--- a/_includes/archive-single.html
+++ b/_includes/archive-single.html
@@ -16,7 +16,7 @@
       {% if include.type == "grid" and teaser != blank %}
         <div class="archive__item-teaser">
           <img src=
-            {% if teaser contains "http" %}
+            {% if teaser contains "://" %}
               "{{ teaser }}"
             {% else %}
               "{{ teaser | prepend: "/images/" | prepend: base_path }}"
diff --git a/_includes/author-profile.html b/_includes/author-profile.html
index 2deed90b..5efe4c84 100644
--- a/_includes/author-profile.html
+++ b/_includes/author-profile.html
@@ -7,7 +7,7 @@
 <div itemscope itemtype="http://schema.org/Person">
 
   <div class="author__avatar">
-    {% if author.avatar contains "http" %}
+    {% if author.avatar contains "://" %}
     	<img src="{{ author.avatar }}" alt="{{ author.name }}">
     {% else %}
     	<img src="{{ author.avatar | prepend: "/images/" | prepend: base_path }}" class="author__avatar" alt="{{ author.name }}">
diff --git a/_includes/comments-providers/discourse.html b/_includes/comments-providers/discourse.html
new file mode 100644
index 00000000..1d23b6f2
--- /dev/null
+++ b/_includes/comments-providers/discourse.html
@@ -0,0 +1,14 @@
+{% if site.comments.discourse.server %}
+{% include base_path %}
+{% capture canonical %}{{ base_path }}{% if site.permalink contains '.html' %}{{ page.url }}{% else %}{{ page.url | remove:'index.html' | strip_slash }}{% endif %}{% endcapture %}
+<script type="text/javascript">
+    DiscourseEmbed = { discourseUrl: '//{{ site.comments.discourse.server }}/',
+                       discourseEmbedUrl: '{{ canonical }}' };
+   (function () {
+     var d = document.createElement('script'); d.type = 'text/javascript'; d.async = true;
+     d.src = DiscourseEmbed.discourseUrl + 'javascripts/embed.js';
+     (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(d);
+   })();
+</script>
+<noscript>Please enable JavaScript to view the comments powered by [Discourse](http://forum.beta-europe.org/c/beta/website).</a></noscript>
+{% endif %}
\ No newline at end of file
diff --git a/_includes/comments-providers/disqus.html b/_includes/comments-providers/disqus.html
index b80be9ef..c6fc691d 100644
--- a/_includes/comments-providers/disqus.html
+++ b/_includes/comments-providers/disqus.html
@@ -19,4 +19,4 @@
   	}());
   </script>
   <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
-{% endif %}
+{% endif %}
\ No newline at end of file
diff --git a/_includes/comments-providers/google-plus.html b/_includes/comments-providers/google-plus.html
index cd582c3d..0b4ff6b7 100644
--- a/_includes/comments-providers/google-plus.html
+++ b/_includes/comments-providers/google-plus.html
@@ -1,2 +1,2 @@
 <script async type="text/javascript" src="//apis.google.com/js/plusone.js?callback=gpcb"></script>
-<noscript>Please enable JavaScript to view the <a href="https://plus.google.com/">comments powered by Google+.</a></noscript>
+<noscript>Please enable JavaScript to view the <a href="https://plus.google.com/">comments powered by Google+.</a></noscript>
\ No newline at end of file
diff --git a/_includes/comments-providers/scripts.html b/_includes/comments-providers/scripts.html
index df699fc5..0da90c5d 100644
--- a/_includes/comments-providers/scripts.html
+++ b/_includes/comments-providers/scripts.html
@@ -3,6 +3,8 @@
 {% case site.comments.provider %}
 {% when "disqus" %}
   {% include /comments-providers/disqus.html %}
+{% when "discourse" %}
+  {% include /comments-providers/discourse.html %}
 {% when "facebook" %}
   {% include /comments-providers/facebook.html %}
 {% when "google-plus" %}
diff --git a/_includes/feature_row b/_includes/feature_row
index 798ac44e..10592b7e 100644
--- a/_includes/feature_row
+++ b/_includes/feature_row
@@ -10,7 +10,7 @@
 
   {% for f in feature_row %}
 
-    {% if f.url contains "http" %}
+    {% if f.url contains "://" %}
       {% capture f_url %}{{ f.url }}{% endcapture %}
     {% else %}
       {% capture f_url %}{{ f.url | prepend: base_path }}{% endcapture %}
@@ -21,7 +21,7 @@
         {% if f.image_path %}
           <div class="archive__item-teaser">
             <img src=
-              {% if f.image_path contains "http" %}
+              {% if f.image_path contains "://" %}
                 "{{ f.image_path }}"
               {% else %}
                 "{{ f.image_path | prepend: "/images/" | prepend: base_path }}"
diff --git a/_includes/gallery b/_includes/gallery
index f1ef8c10..d8454145 100644
--- a/_includes/gallery
+++ b/_includes/gallery
@@ -20,7 +20,7 @@
   {% for img in gallery %}
     {% if img.url %}
       <a href=
-        {% if img.url contains "http" %}
+        {% if img.url contains "://" %}
           "{{ img.url }}"
         {% else %}
           "{{ img.url | prepend: "/images/" | prepend: base_path }}"
@@ -28,7 +28,7 @@
         {% if img.title %}title="{{ img.title }}"{% endif %}
       >
         <img src=
-          {% if img.image_path contains "http" %}
+          {% if img.image_path contains "://" %}
             "{{ img.image_path }}"
           {% else %}
             "{{ img.image_path | prepend: "/images/" | prepend: base_path }}"
@@ -37,7 +37,7 @@
       </a>
     {% else %}
       <img src=
-        {% if img.image_path contains "http" %}
+        {% if img.image_path contains "://" %}
           "{{ img.image_path }}"
         {% else %}
           "{{ img.image_path | prepend: "/images/" | prepend: base_path }}"
diff --git a/_includes/nav_list b/_includes/nav_list
index 60399880..91228ba8 100644
--- a/_includes/nav_list
+++ b/_includes/nav_list
@@ -8,7 +8,7 @@
       <li>
         {% if nav.url %}
           {% comment %}internal/external URL check{% endcomment %}
-          {% if nav.url contains "http" %}
+          {% if nav.url contains "://" %}
             {% assign domain = "" %}
           {% else %}
             {% assign domain = base_path %}
@@ -23,7 +23,7 @@
         <ul>
           {% for child in nav.children %}
             {% comment %}internal/external URL check{% endcomment %}
-            {% if child.url contains "http" %}
+            {% if child.url contains "://" %}
               {% assign domain = "" %}
             {% else %}
               {% assign domain = base_path %}
@@ -43,6 +43,4 @@
       </li>
     {% endfor %}
   </ul>
-</nav>
-
-
+</nav>
\ No newline at end of file
diff --git a/_includes/page__hero.html b/_includes/page__hero.html
index bdbf130b..6cc1ee7e 100644
--- a/_includes/page__hero.html
+++ b/_includes/page__hero.html
@@ -1,18 +1,18 @@
 {% include base_path %}
 
-{% if page.header.image contains "http" %}
+{% if page.header.image contains "://" %}
   {% capture img_path %}{{ page.header.image }}{% endcapture %}
 {% else %}
   {% capture img_path %}{{ page.header.image | prepend: "/images/" | prepend: base_path }}{% endcapture %}
 {% endif %}
 
-{% if page.header.cta_url contains "http" %}
+{% if page.header.cta_url contains "://" %}
   {% capture cta_path %}{{ page.header.cta_url }}{% endcapture %}
 {% else %}
   {% capture cta_path %}{{ page.header.cta_url | prepend: base_path }}{% endcapture %}
 {% endif %}
 
-{% if page.header.overlay_image contains "http" %}
+{% if page.header.overlay_image contains "://" %}
   {% capture overlay_img_path %}{{ page.header.overlay_image }}{% endcapture %}
 {% elsif page.header.overlay_image %}
   {% capture overlay_img_path %}{{ page.header.overlay_image | prepend: "/images/" | prepend: base_path }}{% endcapture %}
@@ -52,4 +52,4 @@
   {% if page.header.caption %}
     <span class="page__hero-caption">{{ page.header.caption | markdownify | remove: "<p>" | remove: "</p>" }}</span>
   {% endif %}
-</div>
+</div>
\ No newline at end of file
diff --git a/_includes/seo.html b/_includes/seo.html
index f914ce36..8073725a 100644
--- a/_includes/seo.html
+++ b/_includes/seo.html
@@ -60,7 +60,7 @@
 
   {% if page.header.image %}
     <meta name="twitter:card" content="summary_large_image">
-    <meta name="twitter:image" content="{% if page.header.image contains "http" %}{{ page.header.image }}{% else %}{{ page.header.image | prepend: "/images/" | prepend: base_path }}{% endif %}">
+    <meta name="twitter:image" content="{% if page.header.image contains "://" %}{{ page.header.image }}{% else %}{{ page.header.image | prepend: "/images/" | prepend: base_path }}{% endif %}">
   {% else %}
     <meta name="twitter:card" content="summary">
     {% if site.og_image %}
@@ -84,7 +84,7 @@
 {% endif %}
 
 {% if page.header.image %}
-  <meta property="og:image" content="{% if page.header.image contains "http" %}{{ page.header.image }}{% else %}{{ page.header.image | prepend: "/images/" | prepend: base_path }}{% endif %}">
+  <meta property="og:image" content="{% if page.header.image contains "://" %}{{ page.header.image }}{% else %}{{ page.header.image | prepend: "/images/" | prepend: base_path }}{% endif %}">
 {% endif %}
 
 {% if page.date %}
diff --git a/_includes/sidebar.html b/_includes/sidebar.html
index 445dd207..b8ee39ab 100644
--- a/_includes/sidebar.html
+++ b/_includes/sidebar.html
@@ -7,7 +7,7 @@
     {% for s in page.sidebar %}
       {% if s.image %}
         <img src=
-        {% if s.image contains "http" %}
+        {% if s.image contains "://" %}
           "{{ s.image }}"
         {% else %}
           "{{ s.image | prepend: "/images/" | prepend: base_path }}"