When I set autoplay to true for a YouTube video (IFrame API) on my site, it doesn\'t work. All the documentation says apple disables autoplay on ios for bandwidth reasons. <
It seems that Youtube's team uses the interaction of the user when taps/clicks a video button to authorize the reproduction.
Remember that youtube.com is a SPA (Single Page Application) so there is no page reload or redirection.
So, youtube.com doesn't have autoplay enabled.