For example, I found this funny video on Imgur
<iframe width="600" height="400" src="https://shrtm.nu/oDGS" do-not-allow="autoplay" allowfullscreen></iframe>
I don’t want the embedded video to autoplay. So I tried to add ‘do-not-allow=“autoplay”’. But I guess it wouldn’t be the right code. Or there is no such code ?