why console alert not working in messaging.onMessage ? any idea? no error so how can i check and debug

''' messaging.onMessage(function (payload) { console.log("Foreground message received:", payload); console.log("soundcheckplus"); const sound = new Audio('/sounds/ring.mp3'); sound.play(); const noteTitle = payload.notification.title; const noteOptions = { body: payload.notification.body, icon: payload.notification.icon, }; new Notification(noteTitle, noteOptions); });'''