Allow all origins (including sub-domains) for server actions

Author: SamyPesse

packages/gitbook-v2/open-next.config.ts

@@ -28,7 +28,7 @@ const config = {
 
     experimental: {
         serverActions: {
-            allowedOrigins: ['*'],
+            allowedOrigins: ['*', '*.*', '*.*.*', '*.*.*.*', '*.*.*.*.*'],
         },
     },
 };