diff --git a/app/controllers/user_controller.rb b/app/controllers/user_controller.rb
index 931d113c..ff7ca87d 100644
--- a/app/controllers/user_controller.rb
+++ b/app/controllers/user_controller.rb
@@ -110,29 +110,6 @@ class UserController < ApplicationController
     redirect_to edit_user_profile_path
   end
 
-  # NOTE: Yes, I am storing and transmitting values as 3 byte numbers because false sense of security.
-  def preview_theme
-    attrib = params.permit([
-      :primary_color, :primary_text,
-      :danger_color, :danger_text,
-      :success_color, :success_text,
-      :warning_color, :warning_text,
-      :info_color, :info_text,
-      :default_color, :default_text,
-      :panel_color, :panel_text,
-      :link_color, :background_color,
-      :background_text, :background_muted,
-      :input_color, :input_text,
-      :outline_color
-    ])
-
-    attrib.each do |k ,v|
-      attrib[k] = v.to_i
-    end
-
-    render plain: render_theme_with_context(attrib)
-  end
-
   def update_theme
     update_attributes = params.require(:theme).permit([
       :primary_color, :primary_text,
diff --git a/config/routes.rb b/config/routes.rb
index 7ffc9036..c9e051e2 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -65,7 +65,6 @@ Rails.application.routes.draw do
 
   match '/settings/theme', to: 'user#edit_theme', via: 'get', as: :edit_user_theme
   match '/settings/theme', to: 'user#update_theme', via: 'patch', as: :update_user_theme
-  match '/settings/theme/preview.css', to: 'user#preview_theme', via: 'post', as: :preview_user_theme
   match '/settings/theme/delete', to: 'user#delete_theme', via: 'delete', as: :delete_user_theme
 
   # resources :services, only: [:index, :destroy]