[Webkit-unassigned] [Bug 165746] Allow cross-document intersection observing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165746

Jeffrey Gilbert <jeffreytgilbert at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jeffreytgilbert at gmail.com

--- Comment #1 from Jeffrey Gilbert <jeffreytgilbert at gmail.com> ---
It's a tragedy this wont land in iOS 11 or Safari 11, those being non-evergreen browsers. My first request for this functionality was in 2014 and Safari is the only major browser to not implement a mechanism for cross document in view measurement. There are mechanisms for measurement all the way back to IE9 and tons of destructive/invasive hacks like frame busting and geometric guessing that are being used today, including in some cases measurement using plugins. 

It seems this is somehow a lower priority item than other enhancement requests, but Safari is most mobile web traffic and still relevant in desktop browser markets as well. So long as those browsers don't report in view dims, fraudsters will target iOS applications and safari web browsers, and safe measurement techniques will not be available, making energy/computationally expensive and potentially unsafe operations for measurement the only way to combat bad actors on the web.

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