diff --git a/source/utilities/server.ts b/source/utilities/server.ts
index 37fbb438..25292b8f 100644
--- a/source/utilities/server.ts
+++ b/source/utilities/server.ts
@@ -63,6 +63,7 @@ export const startServer = async (
 
       if (args['--cors']) {
         response.setHeader('Access-Control-Allow-Origin', '*');
+        response.setHeader('Access-Control-Allow-Headers', '*');
         response.setHeader('Access-Control-Allow-Credentials', 'true');
         response.setHeader('Access-Control-Allow-Private-Network', 'true');
       }