Why Build Progressive Web Apps: Push, but Don't be Pushy! Video Write-Up
Một bài viết và video và mẫu tuyệt vời của Thomas Steiner về các thông báo đẩy tốt trên web. A particularly bad practice is to pop up the permission dialog on page load, without any context at all. Several high traffic sites have been caught doing this. To subscribe people to push notifications, you use the the PushManager interface. Now to be fair, this does not allow the developer to specify the context or the to-be-expected frequency of notifications.