types: update registerHeadlessTask type

transistorsoft / react-native-background-fetch

Periodic callbacks in the background for both IOS and Android

MIT License

1.43k stars 191 forks source link

Closed ckaznable closed 8 months ago

ckaznable commented 8 months ago

When the callback returns something other than a Promise, a "TypeError: Cannot read property 'then' of undefined, js engine: hermes" error is thrown.

christocracy commented 8 months ago

Ok, thanks.