message: Fixed check if dom element being removed
diff: import Vue from 'vue'
  import App from './Container'
  -import defaultConfig from 'src/app-config'
  -import {storage} from 'src/helpers/chrome-api'
  +import {storage, message} from 'src/helpers/chrome-api'
  Vue.config.productionTip = false
  @@ -19,6 +18,14 @@ storage.sync.get('config').then(result => {
  }
  })
  +message.on('SELECTION', (data, sender, sendResponse) => {
  + // check if dom element being removed
  + if (vm && vm.$el && !document.querySelector('.saladict-container')) {
  + document.body.appendChild(vm.$el)
  + sendResponse()
  + }
  +})
  +
  function activate () {
  vm = new Vue({
  render: h => h(App)
  