Re: [ServiceWorker] Specify .focus() and .openWindow() behaviour (#602)

I think "If this algorithm is not allowed to show a popup" is the correct restriction to apply here. It's what `requestFullscreen` uses too.

`window.focus()` would have thrown a security error if it were designed in the modern day. 

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Received on Monday, 26 January 2015 23:07:19 UTC