Global variable vue.js

Hi!

Have created a global variable in vue.js -> $corceID

/**
 * First we will load all of this project's JavaScript dependencies which
 * includes Vue and other libraries. It is a great starting point when
 * building robust, powerful web applications using Vue and Laravel.
 */

require('./bootstrap')

window.Vue = require('vue')
window.moment.updateLocale('en', { week: { dow: 1 } })

Vue.config.productionTip = false
Vue.prototype.$jquery = $
Vue.prototype.$corceID = 4

console.log("KALLER OPP APP.JS");

import VueChatScroll from 'vue-chat-scroll';

Vue.use(VueChatScroll);

import App from './App.vue'
import VueGeolocation from 'vue-browser-geolocation'
import * as VueGoogleMaps from 'vue2-google-maps'


// Core
import router from './routes/routes'
import store from './store/store'
import i18n from './i18n'


// Plugins

import GlobalComponents from './globalComponents'
import GlobalDirectives from './globalDirectives'
import GlobalMixins from './mixins/global'
import { mapGetters, mapActions } from 'vuex'



Vue.use(GlobalComponents)
Vue.use(GlobalDirectives)
Vue.use(GlobalMixins)
Vue.use(VueGeolocation)
Vue.config.productionTip = false

Vue.use(VueGoogleMaps,
  {
    load: {
       key: 'AIzaSyASILpMOGddd_ggGGGGgb_o9sDvOB2lX8',
       libraries: "places" // necessary for places input 
       
    }
    
    
})

/**
 * Next, we will create a fresh Vue application instance and attach it to
 * the page. Then, you may begin adding components to this application
 * or customize the JavaScript scaffolding to fit your unique needs.
 */

const app = new Vue({
  el: '#app',
  render: h => h(App),
  router,
  store,
  i18n,
  created() {
    this.fetchLanguages()
  },
  methods: {
    ...mapActions('I18NStore', ['fetchLanguages'])
  }
})

I am using this global variable in my component

$corceID is set to 4 when vue file is loaded.

The problem is that app.js is executed again when refresh page.

How can i set Vue.prototype.$corceID only on startup (after login) NOT when i refresh JS ?