Safari is way behind Chrome and Firefox on web features and has all kinds of proprietary rules on existing implementations. It's not even required or the defau

Safari is way behind Chrome and Firefox on web features and has all kinds of proprietary rules on existing implementations. It's not even required or the default install on any OS. And it has rapid updates that constantly test new features and improve performance and security. Any "exclusive" features are just early testing for later standardization. It's Safari that's lagging in implementing them.