notification.actions returns a new object each time

[jakearchibald]

https://notifications.spec.whatwg.org/#dom-notification-actions

This means:

notification.actions === notification.actions; // false

Feels like this should behave more like request.headers in fetch, and create the object up front. It's fine for implementations to defer creating the object until first get, as long as it isn't observable.

[annevk]

That is the intent (see the [SameObject] annotation). We could either create an internal slot or wait for whatwg/webidl#212 to get fixed.