2 files changed, 9 insertions, 10 deletions
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 51e9764d4..5863fe168 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -138,11 +138,7 @@ class ApplicationController < ActionController::Base
   def respond_with_error(code)
     respond_to do |format|
       format.any  { head code }
-
-      format.html do
-        set_locale
-        render "errors/#{code}", layout: 'error', status: code
-      end
+      format.html { render "errors/#{code}", layout: 'error', status: code }
     end
   end
 
diff --git a/app/controllers/concerns/localized.rb b/app/controllers/concerns/localized.rb
index 145549bcd..b43859d9d 100644
--- a/app/controllers/concerns/localized.rb
+++ b/app/controllers/concerns/localized.rb
@@ -4,16 +4,19 @@ module Localized
   extend ActiveSupport::Concern
 
   included do
-    before_action :set_locale
+    around_action :set_locale
   end
 
   private
 
   def set_locale
-    I18n.locale = default_locale
-    I18n.locale = current_user.locale if user_signed_in?
-  rescue I18n::InvalidLocale
-    I18n.locale = default_locale
+    locale   = current_user.locale if respond_to?(:user_signed_in?) && user_signed_in?
+    locale ||= session[:locale] ||= default_locale
+    locale   = default_locale unless I18n.available_locales.include?(locale.to_sym)
+
+    I18n.with_locale(locale) do
+      yield
+    end
   end
 
   def default_locale