X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/b7aa25947e27e368f0bf4774c18767207d09d7c1..6bc03625a1bea320f2dfb609d84bf6bc5bfed72a:/app/controllers/application.rb

diff --git a/app/controllers/application.rb b/app/controllers/application.rb
index c5624db14..6ead2d668 100644
--- a/app/controllers/application.rb
+++ b/app/controllers/application.rb
@@ -112,6 +112,8 @@ class ApplicationController < ActionController::Base
     end
 
     I18n.locale = request.compatible_language_from(I18n.available_locales)
+
+    response.headers['Content-Language'] = I18n.locale
   end
 
   def api_call_handle_error