Fix "Error: Validation Failed.", fixes qiubaiying#143

Author: qiubaiying

_layouts/post.html

@@ -88,6 +88,9 @@ <h2 class="subheading">{{ page.subtitle }}</h2>
                 <link rel="stylesheet" href="https://unpkg.com/gitalk/dist/gitalk.css">
                 <script src="https://unpkg.com/gitalk@latest/dist/gitalk.min.js"></script>
                 <div id="gitalk-container"></div>
+                <!-- 引入一个生产md5的js，用于对id值进行处理，防止其过长 -->
+                <!-- Thank DF:https://github.com/NSDingFan/NSDingFan.github.io/issues/3#issuecomment-407496538 -->
+                <script src="{{ site.baseurl }}/js/md5.min.js"></script>
                 <script type="text/javascript">
                     var gitalk = new Gitalk({
                     clientID: '{{site.gitalk.clientID}}',
@@ -96,7 +99,7 @@ <h2 class="subheading">{{ page.subtitle }}</h2>
                     owner: '{{site.gitalk.owner}}',
                     admin: ['{{site.gitalk.admin}}'],
                     distractionFreeMode: {{site.gitalk.distractionFreeMode}},
-                    id: window.location.pathname,
+                    id: md5(location.pathname),
                     });
                     gitalk.render('gitalk-container');
                 </script>