diff --git a/app/helpers/posts_helper.rb b/app/helpers/posts_helper.rb
index 6a4758a73..59c12ded6 100644
--- a/app/helpers/posts_helper.rb
+++ b/app/helpers/posts_helper.rb
@@ -20,7 +20,7 @@ module PostsHelper
   def post_iframe_url(post_id, opts={})
     opts[:width] ||= 516
     opts[:height] ||= 315
-    host = AppConfig.pod_uri.authority
-   "<iframe src='#{Rails.application.routes.url_helpers.post_url(post_id, :host => host)}' width='#{opts[:width]}px' height='#{opts[:height]}px' frameBorder='0'></iframe>".html_safe
+    "<iframe src='#{AppConfig.url_to(Rails.application.routes.url_helpers.post_path(post_id))}' " \
+      "width='#{opts[:width]}px' height='#{opts[:height]}px' frameBorder='0'></iframe>".html_safe
   end
 end
diff --git a/app/presenters/o_embed_presenter.rb b/app/presenters/o_embed_presenter.rb
index b3788ca50..4fe98761d 100644
--- a/app/presenters/o_embed_presenter.rb
+++ b/app/presenters/o_embed_presenter.rb
@@ -38,7 +38,7 @@ class OEmbedPresenter
   end
 
   def post_author_url
-   Rails.application.routes.url_helpers.person_url(@post.author, :host => AppConfig.pod_uri.host)
+    AppConfig.url_to(Rails.application.routes.url_helpers.person_path(@post.author))
   end
 
   def iframe_html