cover-view，App不显示

<video :src="videoPath" autoplay="true" enable-play-gesture="true" ref="video" id="myVideo" @timeupdate="timeChange" @ended="endToNext" @controlstoggle="changeControl">
<cover-view v-if="showSpeed" @click="changeSpeed">
x{{speedText}}
</cover-view>
微信小程序调试正常，手机基座调试和真机不显示cover-view的文字