Registration failed - push service error

[刘淳猛]

on Android Chrome, when run getToken，it happens this error `Registration failed - push service error`. 

const firebaseConfig = {} // form firebase url copy it

const app = initializeApp(firebaseConfig);

const messaging = getMessaging(app); 

getToken(messaging, {vapidKey: 'xxx' // also from firbase url config, serviceWorkerRegistration: sw })

should someone help me hot to fixed it.  It only happen on android chrome