cookie doesn't work about cordova-plugin-x5-tbs HOT 5 OPEN

<template>
  <div id="swiper">
    <div><button @click="setCookies">set cookie</button></div>
    <div><button @click="showCookies">show cookie</button></div>
    <div><button @click="clearCookie">clear cookie</button></div>
  </div>
</template>

<script>
  import {cookie} from 'vux'
  export default {
    name: 'Swiper',
    data: function () {
      return {}
    },
    methods: {
      setCookies () {
        cookie.set('cookie', 'this is my cookie', {path: '/'})
      },

      showCookies () {
        alert(cookie.get('cookie', {path: '/'}))
      },

      clearCookie () {
        cookie.remove('cookie', {path: '/'})
      }
    }
  }
</script>

<style lang="less" scoped>
  #swiper {
    height: 100%;
    text-align: center;
    &>div {padding-top: 50px;}
    button {
      display: block;
      margin: 0 auto;
      padding: 5px 10px;
      border-radius: 4px;
      background-color: burlywood;
    }
  }
</style>