Merge pull request #544 from krtcom/bug_fetch_comments

cancel fetching comments if #isso-root is not available

isso/js/embed.js

@@ -46,6 +46,11 @@ require(["app/lib/ready", "app/config", "app/i18n", "app/api", "app/isso", "app/
     }
 
     function fetchComments() {
+
+        if ($('#isso-root').length == 0) {
+            return;
+        }
+
         $('#isso-root').textContent = '';
         api.fetch(isso_thread.getAttribute("data-isso-id") || location.pathname,
             config["max-comments-top"],