diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index 065aa0978..3f34454fa 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -21,17 +21,19 @@ class PostsController < ApplicationController
   def show
     @post = Post.find(params[:id])
 
-    @comments = @post.comments
-    @comments = @comments.includes(:creator)
-    @comments = @comments.includes(:votes) if CurrentUser.is_member?
-    @comments = @comments.visible(CurrentUser.user)
+    if request.format == Mime::Type.lookup("text/html")
+      @comments = @post.comments
+      @comments = @comments.includes(:creator)
+      @comments = @comments.includes(:votes) if CurrentUser.is_member?
+      @comments = @comments.visible(CurrentUser.user)
 
-    include_deleted = @post.is_deleted? || (@post.parent_id.present? && @post.parent.is_deleted?) || CurrentUser.user.show_deleted_children?
-    @sibling_posts = @post.parent.present? ? @post.parent.children : Post.none
-    @sibling_posts = @sibling_posts.undeleted unless include_deleted
+      include_deleted = @post.is_deleted? || (@post.parent_id.present? && @post.parent.is_deleted?) || CurrentUser.user.show_deleted_children?
+      @sibling_posts = @post.parent.present? ? @post.parent.children : Post.none
+      @sibling_posts = @sibling_posts.undeleted unless include_deleted
 
-    @child_posts = @post.children
-    @child_posts = @child_posts.undeleted unless include_deleted
+      @child_posts = @post.children
+      @child_posts = @child_posts.undeleted unless include_deleted
+    end
 
     respond_with(@post) do |format|
       format.html.tooltip { render layout: false }