Chrome 66: no more autoplaying videos if they have sound. “Autoplay is now allowed only when either the media won’t play sound, after the user clicks or taps on the site, or (on desktop) if the user has previously shown an interest in media on the site”
I am so glad they are doing away with Autoplay its a security issue on windows with DVDs and I was waiting for it to be exploited on chrome anytime something auto starts its issue. Good security practices by Google.