How do I prevent window selection on iOS?

I made an endless runner style game, but on iPad tapping and holding to jump selects the entire game window, breaking the game.

Is there some way to prevent this from happening, either within C3 itself, or with some HTML in the index file?

C3 should already be preventing this. It might be selecting on the parent page though (the Newgrounds page), in which case Newgrounds would need to prevent it.

C3 should already be preventing this. It might be selecting on the parent page though (the Newgrounds page), in which case Newgrounds would need to prevent it.

Weird. It also happens on GameJolt and itch, so whatever needs to be done isn't limited to just Newgrounds.

Kinda strange :S