I think it doesn't appear at all if you have enhanced tracking protection turned on.
And the normal game shows up in the iframe if you have looked at the real game before, and have data in your localStorage. I assume to not arouse suspicion from people ripping off the game.
I disabled tracking protection, and deleted localstorage on the real site. Then it showed up.
And the normal game shows up in the iframe if you have looked at the real game before, and have data in your localStorage. I assume to not arouse suspicion from people ripping off the game.
I disabled tracking protection, and deleted localstorage on the real site. Then it showed up.