diff --git a/lib/PocketIO/Resource.pm b/lib/PocketIO/Resource.pm
index d710eae..9cbe58a 100644
--- a/lib/PocketIO/Resource.pm
+++ b/lib/PocketIO/Resource.pm
@@ -155,6 +155,8 @@ sub _on_connection_created {
 
         push @$headers, 'Connection'     => 'keep-alive';
         push @$headers, 'Content-Length' => length($handshake);
+        push @$headers, 'Access-Control-Allow-Origin' => $env->{HTTP_ORIGIN};
+        push @$headers, 'Access-Control-Allow-Credentials' => 'true';
 
         $respond->([200, $headers, [$handshake]]);
     };