CHROME HAS CHANGED THEIR SETTINGS FOR THIS FEATURE. I WILL BE LOOKING INTO THIS MYSELF.
Chrome, Firefox, Opera, etc. has made an update to stop YT videos from stopping that from happening.
So to fix that here is something for you to do:
1. Depending on the browser that you are using type in: ChosenBrowser://flags
Example 1: Google Chrome: Chrome://flags/ | Opera: opera://flags
2. Go to the search option and type in autoplay and this should come up:
3. And click No Gesture Is Required:
4. Relaunch your chosen browser and ta-da!
Happy writing and listening!