materio-d8/web/themes/custom/materiotheme/vuejs/store/modules/common.js

import { REST } from 'vuejs/api/rest-axios'
import { JSONAPI } from 'vuejs/api/json-axios'
import qs from 'querystring'

export default {
  namespaced: true,

  // initial state
  state : {
    pagetitle:null,
  },

  // getters
  getters : {},

  // mutations
  mutations : {
    setPagetitle (state, title) {
      console.log('Common, setPagetitle', title);
      state.pagetitle = title
    }
  },

  // actions
  actions : {}

}