[anste]

Sad, but true. Unfortunately, Safari still has some ways to go in terms of feature support. https://ios404.com/ has a great list of stuff that's still missing.

[frizlab]

In my opinion it is very fortunate that most of these APIs are not supported. I don’t want a webpage to make my phone vibrate for instance. Nor do I want to be able to give the permission for a webpage to do it by the way.

[Aloisius]

It seems like most of the missing features aren't part of any standard.

[shepherdjerred]

Most people wouldn't miss the majority of those APIs.

Safari has a lot of quirks, but those are mostly felt more by developers rather than users.