diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index d4dee8c..d96e058 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -141,7 +141,7 @@ http {
         root /srv/element.grapheneos.org;
 
         include snippets/security-headers.conf;
-        add_header Cross-Origin-Resource-Policy "same-origin" always;
+        add_header Cross-Origin-Resource-Policy "cross-origin" always;
         add_header Content-Security-Policy "font-src 'self'; manifest-src 'self'; script-src 'self' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; frame-ancestors 'self'; block-all-mixed-content" always;
         # obsolete and replaced with Content-Security-Policy frame-ancestors 'self'
         add_header X-Frame-Options "SAMEORIGIN" always;