picker的rangeKey属性没效果，下拉框显示undefined

bcp2014

版本：Taro v3.0.15
小程序是没问题的，h5不行
<picker
mode='selector'
:range="selector"
rangeKey="val"
:value="selectorValue"
@change="handleChange"

<view class='demo-list-item'>
  <view class='demo-list-item__label'>国家地区</view>
  <view class='demo-list-item__value'>
    {{ selector[selectorValue] }}
  </view>
</view>

</picker>