Return force_ssl to the controller (#2380)

app/controllers/application_controller.rb

@@ -5,6 +5,8 @@ class ApplicationController < ActionController::Base
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
 
+  force_ssl if: :https_enabled?
+
   include Localized
 
   helper_method :current_account
@@ -24,6 +26,10 @@ class ApplicationController < ActionController::Base
 
   private
 
+  def https_enabled?
+    Rails.env.production? && ENV['LOCAL_HTTPS'] == 'true'
+  end
+
   def store_current_location
     store_location_for(:user, request.url)
   end