Safari has the fastest JavaScript engine. In many respects, Safari's implementation is top notch. Apple makes money off phones and people use Safari a lot on phones. I don't understand why people think Apple don't invest on Safari.
>>sanxiy+(OP)
Because people are in arms about Web Integrity API, but a lot of the same people will crucify Safari (and Firefox) for not implementing a bunch of Chrome-only non-standards (like the plethora of hardware APIs)