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?
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
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