--- a/app/django/middleware/locale.py	Tue Oct 14 12:36:55 2008 +0000
+++ b/app/django/middleware/locale.py	Tue Oct 14 16:00:59 2008 +0000
@@ -19,6 +19,7 @@
 
     def process_response(self, request, response):
         patch_vary_headers(response, ('Accept-Language',))
-        response['Content-Language'] = translation.get_language()
+        if 'Content-Language' not in response:
+            response['Content-Language'] = translation.get_language()
         translation.deactivate()
         return response