iframe_api如何控制Mobile（youtube-api）？

Question

iframe_api（脚本）移动设备如何工作？

当playerVars等于0时，我无法播放移动设备;但当playerVars等于1或2时，我可以。

<div id="container" class="container">
    <div id="playerLayer"></div>
</div>

function onYouTubeIframeAPIReady() {
        player = new YT.Player('playerLayer', {
            height: '520',
            width: '560',
            html5 : 0,
            videoId: 'jp2lDKlxFVY',
            playerVars : {
                controls: 0,
                showinfo: 0,
                modestbranding: 1,
                wmode: "opaque"
            },
            events: {
                'onReady': onPlayerReady,
                'onStateChange': onPlayerStateChange
            }
        });
    }