diff --git a/deploy/nginx-contracts.conf b/deploy/nginx-contracts.conf
index 8bf9921..93199d3 100644
--- a/deploy/nginx-contracts.conf
+++ b/deploy/nginx-contracts.conf
@@ -39,7 +39,8 @@ server {
         proxy_pass http://127.0.0.1:8766;
         proxy_read_timeout 600s;
         proxy_buffering off;
-        add_header Access-Control-Allow-Origin "*";
+        add_header Access-Control-Allow-Origin "*" always;
+        add_header Access-Control-Allow-Methods "GET, OPTIONS" always;
     }
 
     listen 443 ssl; # managed by Certbot