anchor.diff:              .d-post-meta.col-sm-10
                   .d-post-meta-create
                       | Posted by #{post.created_user.username} on #{moment(post.created_date).format('YYYY-MM-DD HH:mm')}
  -                    if post.categories
  -                        |  in&nbsp;
  +                    if (post.categories != '')
  +                        |  in &nbsp;
                           span
                               for category in post.categories
                                   a.label.label-info(href="/category/#{category.slug}") #{category.name}
  
positive.code:                     #post-feedback.pull-right Was this helpful?
                          form(method="post")
                              input(type="hidden", name="id", value="#{post._id}", id="post_id")
                              button.feedback-button(name="action", value="like", disabled=userFeedback, class=(userFeedback ? "" : "green"))
                                  i.fa.fa-thumbs-up
                                  |  Yes
                              button.feedback-button(name="action", value="dislike", disabled=userFeedback, class=(userFeedback ? "" : "red"))
                                  i.fa.fa-thumbs-down
                                  |  No
  
  
negative.code:                 var postId = $('#post_id').val();
  
                  if ($this.hasClass('active')) return false;
  
                  $('.feedback-button').removeClass('active');
                  $this.addClass('active');
                  var data = { id: postId, action: $this.val() }
                  $.post('/post/feedback', data, function(data) {
                      //if (data.result == 'ok')
  