diff --git a/imports/nginx.conf b/imports/nginx.conf
index cbcd4075..012e738e 100644
--- a/imports/nginx.conf
+++ b/imports/nginx.conf
@@ -36,6 +36,8 @@ server {
 
     location /mock-donor-service/ {
           proxy_pass http://mock-donor-service:5001/;
+            # CORS headers
+          add_header 'Access-Control-Allow-Origin' '*';
     }