similar posts and cdn of mathjax

yzcx · May 7, 2017 · 71fe734 · 71fe734
1 parent 7871312
commit 71fe734
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diff --git a/_includes/head.html b/_includes/head.html
@@ -50,7 +50,7 @@
 });
 </script>
 <script type="text/javascript"
-  src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
+  src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML">
 </script>
 {% endif %}
 </head>
diff --git a/_layouts/post.html b/_layouts/post.html
@@ -79,7 +79,9 @@ <h2 id="comments">Comments</h2>
                     Content
                 </div>
                 <ul id="content-side" class="content-ul">
+                    {% if hasSimilar.size > 0 %}
                     <li><a href="#similar_posts">Similar Posts</a></li>
+                    {% endif %}
                     <li><a href="#comments">Comments</a></li>
                 </ul>
             </div>