Check nested iframes for video elements #36
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I've added a function which checks the iframes on a page for same source policy and then checks if they have a video in them. It's even potentially recursive if the site uses nested iframes. The existing video element locating is used first & all other functionality should be left working as it was previously. That being said, I haven't yet tested this code within the safari extension itself.
Here's an example of a site using nested iframes for their self-hosted video element: https://www.giantbomb.com/chat/