X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/d75bc6ef690c3c42daedc78342167306eccf38af..0d5be22cb517ebaaab5eb7af13150bf61e41df56:/app/controllers/application_controller.rb

diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index d9bc9e4f1..6dbe9165c 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -143,9 +143,12 @@ class ApplicationController < ActionController::Base
   end
   
   def set_locale
+    response.header['Vary'] = 'Accept-Language'
+
     if @user
       if !@user.languages.empty?
         request.user_preferred_languages = @user.languages
+        response.header['Vary'] = '*'
       elsif !request.user_preferred_languages.empty?
         @user.languages = request.user_preferred_languages
         @user.save