> One thing that Safari is incredibly good at (and its' engineers are proud of) is the ability to reduce resource consumption for non-active tabs and windows to

> One thing that Safari is incredibly good at (and its' engineers are proud of) is the ability to reduce resource consumption for non-active tabs and windows to nearly zero. This is really good when running on battery because it is a shame to dedicate resources to things that aren't even visible on screen. But this could make the results far more dramatic through your test. Does it mean that page in background isn't updated in Safari?