Starts playing invisible videos on certain pages

[s1h4d0w]

For work I always have a tab with Google Analytics open. Now apparently there's a videos hidden somewhere on that page but I have no idea where.

The problem is that I have no tabs with players open to my knowledge. No Youtube, nothing. So I can't pin the Media Keys to a certain tab. But I do have Spotify open (the app, not the web player). So when I press play my Spotify starts to play, but some random guy also starts talking.

Looking at my tabs it seems that a video on my Google Analytics tab has started playing, but the problem is, there's no video in that page as far as I can see. It's apparently hidden somewhere in a menu, but Media Keys manages to find it and play it, even if I can't see it myself.

This is incredibly frustrating and I've had to disable the addon for now.

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