As I mentation when I set the "start:prod": " set NODE_ENV=production && nodemon server.js", the server starts as production but internally I guess it's not setting NODE_DEV as production, when I send the request as production loading times go to infinite and failed, but when I set NODE_DEV = production manually it works, I don't what's happing but I try to figure it out from my side if you have any knowledge let me know.