UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36

Example URL:
http://www.telegraph.co.uk/news/2017/09/14/north-korea-files-another-ballistic-missile-japan-residents/

Steps to reproduce the problem:
Go to pretty much any news site to read an article.
Be bombarded with unwanted 'related video' playback - not adverts, but content that the site itself feels you need to watch right now without so much as hitting a playback button.

What is the expected behavior?
Sites should be cautious with autoplay, since most of the time it's at best annoying and at worst it can prevent screen reader users from using the site entirely, since their primary interaction medium is being drowned out by noise.  Unfortunately, the increasing trend in complete disregard of accessibility and usability guidelines means we need a solution that allows users to opt-in to this behaviour for sites that do need it and use it responsibly (e.g. vimeo, youtube, games), and stop the majority from doing so just because they can.

Two off the top of my head solutions:

1. Have a permissions dialog pop up the same way as microphone/webcam access, etc.  Allow the user to explicitly allow a given site to autoplay videos for the current session, or forever, and revoke this permission if they begin to abuse it down the line.

2. disallow *audio* on autoplaying videos, which allows animations etc to work, which while it removes the need for a permissions dialog, I suspect would be more confusing.

What went wrong?
You can't patch people's behaviour.

Did this work before? No 

Is it a problem with Flash or HTML5? HTML5

Does this work in other browsers? No
 IE, Edge, Firefox

Chrome version: 60.0.3112.113  Channel: n/a
OS Version: 10.0
Flash Version: 

Contents of chrome://gpu: 
Not relevant

As a developer I strongly believe we do still need some way to autoplay videos from within JS for some classes of sites, and not just through a gesture like Mobile Safari (e.g. youtube's jumping to next video, video games, etc), so however this might be addressed should allow the current behaviour for trusted sites.