A recent Youtube Web update has added a canvas whenever the seek bar is visible, an HTML5 canvas pops up. This was not asked for and not needed. If you disable canvases for privacy, this will cause a horrific red bad to cover half the screen until you hide the seekbar. Canvases can be used for fingerprinting, which I’m sure Google is doing here.
Google uselessly uses the canvas for its reverse image search. And I do mean uselessly - The image you upload is put onto the canvas, then immediately relayed to the server and never used again.
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Yes because as we all know that’s too hard for Google to achieve.
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