diff --git a/README.md b/README.md
index d36d3c3..de0700b 100644
--- a/README.md
+++ b/README.md
@@ -6,4 +6,5 @@ proxy point to the server with these headers:
 Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
 Content-Security-Policy: default-src 'none'; img-src 'self'; media-src 'self'; style-src 'self' 'unsafe-inline'; sandbox
 X-Content-Type-Options: nosniff
+Access-Control-Allow-Origin: *
 ```