Use unicode charset for post XML preview

boards/views/sync.py

@@ -57,6 +57,6 b' def get_post_sync_data(request, post_id)'
               % (post.global_id, xml_repr)
 
     return HttpResponse(
-        content_type='text/plain',
+        content_type='text/plain; charset=utf-8',
         content=content,
     )
  No newline at end of file