video组件在iPhone6P上面全屏播放时不显示进度条？

video组件在iPhone6P上面全屏播放时不显示进度条，点击屏幕也不会出现进度条

<video wx:if=“{{item.resource_type == 4}}” bindplay=‘play’  bindended=“closeVideo” id=“video{{index}}” data-=“video{{index}}” class=“video” src=“{{item.video_urls[0]}}” controls></video>