VUE CLI-3 Project not working on IE-11 - vuejs2

Question

I have created an project in vuejs using vue-cli3. It working fine on chrome browser but in IE-11 version blank screen is shown with the following error in console as mentioned in this link: https://drive.google.com/file/d/1QaNwK1ekI2BwFsFyjvgbSsvwHBCmlcAD/view?usp=drivesdk
On clicking console error that I have pointed in above screenshot, it opens a screen as display in given link https://drive.google.com/file/d/1_QXVjcw3cmqeC70LfNyLcr__rnXVIZIh/view?usp=drivesdk with the error in mini-toastr package:
Here is my babel.config.js file code:
module.exports = {
presets: [
['#vue/app', {
polyfills: [
'es6.promise',
'es6.symbol'
]
}]
]
}
and .browserslistrc file code :
> 1%
last 2 versions
not ie <= 8
I am not getting where I am doing a mistake. Is anything I am missing? If anyone need some more info please let me know. Thanks!

Answer 1

I finally ended up with the solution of above issue. To run project on IE-11 version just follow the 2 steps:
Install babel-polyfill using command "npm install --save babel-polyfill".
Import babel-polyfill in your main.js or index.js file at the top of above all imported packages. For e.g Here is your main.js file.
Note: If you import babel-polyfill at the end it does't work.
import 'babel-polyfill'
import Vue from 'vue'
import Vuetify from 'vuetify'
import router from './router'
// include script file
import './lib/DemoScript'
// include all css files
import './lib/DemoCss'
Vue.use(Vuetify)
new Vue({
store,
router,
render: h => h(App),
components: { App }
}).$mount('#app')

Answer 2

Another solution: use the power of vue-cli-3 to leverage browser support: https://cli.vuejs.org/guide/browser-compatibility.html#modern-mode
Just one option when building and you're done once you've chosen browserslist to support :-)
This should work well for building an app.