"vuex requires a promise polyfill in this browser"

Re-raising this as I don’t think it was solved in #260

We should just be able to install babel-polyfill and then:

entry: {
  'babel-polyfill': 'babel-polyfill',
  app: './src/main.js'
},

But that’s a no go.

[adambiggs]

No idea what I’m doing wrong, but I’m still getting the same error with @DevanB’s final solution…

Error: [vuex] vuex requires a Promise polyfill in this browser.
  at webpack:///~/vuex/dist/vuex.js:214:0 <- index.js:34700

---

Edit: Got it working by adding es6-promise.auto.js to my karma.conf.js:

    files: [
      '../../node_modules/es6-promise/dist/es6-promise.auto.js',
      './index.js'
    ]

…Still not sure why import 'es6-promise/auto' doesn’t work in Karma.

[DevanB]

@limichange that worked!

Again, thanks @LinusBorg for the help also (and the new knowledge!)

I’ll be glad to put in a PR for some documentation on the process, if wanted. This was the final solution:

import 'es6-promise/auto'

import Vue from 'vue'
import App from './App'
import router from './router'
import store from './store'
import { sync } from 'vuex-router-sync'
import VueHead from 'vue-head'

sync(store, router)
Vue.use(VueHead)

/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  store,
  render: h => h(App)
})