Look on top in the search bar  the black lock is in front of it

{ lock is here}https://myboomerplace.com/answers/view/id_1670/title_Auto-play-won%E2%80%99t-work/

see the black lock on search bar top left.

That lock means boomers is a secured site.

Click on that  lock and where  you see "sound". m click after Sound and make it "allow". and then just go to your page it should work then if you do have a autoplay video on.