Different behaviour in Safari (compared to Chrome and Firefox)

Hi, Frank.

I find that when I click the WP YouTube Lyte image in Safari I have to click again to play the video when the player appears.

But in Chrome and Firefox, I only have to click the image and the video plays after that, without the need for a second click.

Is this an expected browser difference, possible related to Apple’s tighter privacy settings?

The page I need help with: [log in to see the link]