fix comments

Author: acrogenesis

lib/layouts/post_layout.ex

@@ -26,7 +26,7 @@ defmodule AcrogenesisCom.PostLayout do
             data-disqus-shortname="bluehats"
             data-disqus-identifier="<%= @page[:permalink] %>"
             data-disqus-title="<%= @page[:title] %>"
-            data-disqus-url=""
+            data-disqus-url="<%= URI.merge(@site[:config][:url], @page[:permalink]) |> to_string() %>"
           >Show comments</button>
           <div id="disqus_thread"></div>
           <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>

lib/layouts/root_layout.ex

@@ -18,6 +18,8 @@ defmodule AcrogenesisCom.RootLayout do
               |> Enum.intersperse("|")
               |> Enum.join(" ") %>
         </title>
+        <% canonical = URI.merge(@site[:config][:url], @page[:permalink] || "/") |> to_string() %>
+        <link rel="canonical" href="<%= canonical %>" />
         <script>
           (function() {
             try {