"can be", not "must be"...
Remember that we had real time webchat without JavaScript two decades ago, and a lot of other things that would probably turn into some sort of Chrome-only site if invented today.
Remember that we had real time webchat without JavaScript two decades ago, and a lot of other things that would probably turn into some sort of Chrome-only site if invented today.
Unless I'm misunderstanding something about the problem, I don't do iOS dev or any webdev complicated enough to require OS notifications.
As an iPhone user, this being difficult for developers is a highly desirable feature!