firebase.messaging：无法读取未定义的属性“getNotificationPermission_”

Question

Im trying to add firebase for webpush in one old project.

There are require.js and also I cant use node. So I copy firebase app and firebase messaging from firebase cdn (www.gstatic.com) and import them in project.

But when I call messaging method requestPermission() it outputs in console Cannot read property 'getNotificationPermission_' of undefined .

Firebase losing context, but if I change all this for explicit context assignment, like let self = this , everything works fine.

How should I import firebase for its performance?

Answer 1

For anyone, who faced same problem - I find the with epmty: scheme in requirejs . This GitHub issue may help you https://github.com/firebase/firebase-js-sdk/issues/1569