diff --git a/default.conf b/default.conf
index e52c1d5..42be5a7 100644
--- a/default.conf
+++ b/default.conf
@@ -261,6 +261,7 @@ server {
         proxy_pass http://metrica;
     }
     if ($host = s.hbpn.link) {
+      add_header Access-Control-Allow-Origin $http_origin always;
       proxy_pass http://respondent;
     }
     if ($host = soauth.pena.digital) {