Re: [PageVisibility] This spec is not optimal for iframes

In the new version, we have addressed this use case. Please check the
current draft at:
https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PageVisibility2/Overview.html


On Fri, Jan 17, 2014 at 2:30 PM, Jeffrey Gilbert
<jeffreytgilbert@gmail.com>wrote:

> http://www.w3.org/TR/page-visibility<http://www.w3.org/TR/page-visibility/#introduction>
> /
>
> The scope of this spec is short sighted. It does not take into account the
> scroll position of the page. Because of this, iframes which are below the
> fold will still fire that they are visible when they are in fact not
> visible and should not be running processes as though they were. Because of
> this, I recommend adding this visibility check to the specification so that
> browser vendors can enable developers to write more power friendly and
> state aware applications.
>
> Jeffrey Gilbert
>
>