Here's a reply to test web push notification, which should pop up on your iphone. And if it does not then maybe its due to 2 things: Maybe it did popup and disappeared after some time, and hence by the time you picked up your phone, its gone Or needs to be enabled elsewhere like the notification center on Mac

And now we are going to try some web push from an Android phone

Well now, we are going to test push notifications. How exciting. Will it work, wont it work? Ohhhh the suspense will kill me.