https://html5test.com/compare/browser/chrome-52/safari-9.1.html https://html5test.com/compare/browser/chrome-52/safari-9.1.h... But you are correct, not all of

https://html5test.com/compare/browser/chrome-52/safari-9.1.html https://html5test.com/compare/browser/chrome-52/safari-9.1.h... But you are correct, not all of those are HTML5 APIs.