I don't know how Safari does it, but it works, is incredibly fast, and eats much less memory than Chrome. (My browsing habits suggest Safari is about 30-40% che

I don't know how Safari does it, but it works, is incredibly fast, and eats much less memory than Chrome. (My browsing habits suggest Safari is about 30-40% cheaper in terms of memory, but that's anecdata so truck loads of salt required.) In any event, there are way too many replies to keep count of in this thread, but all I can say is that however Safari does it – it just works(tm). Accidental backspace has literally never been an issue for me since they implemented this. There are convincing arguments why backspace as a short cut is a bad idea to begin with, but old habits die hard, and I for one am very happy that Safari makes this work.