小程序直播 live-player 全屏之后不显示cover-view问题

<live-player id='livePlayer' src="" mode="live" autoplay bindstatechange="statechange" bindnetstatus='netchange' binderror="error" style="width: 100%; height: 422rpx;">
    <cover-view class='controls-box {{fullScreen?"full-screen-wh":""}}'>
      ......

    </cover-view>
</live-player> //包起来

live-player不要用单标签  需要把cover-view包起来 - - 。