babel.config.js

// eslint-disable-next-line no-undef
module.exports = {
  presets: [[
    '@vue/app',
    {
      /* Disabled due to clash between core-js versions in Storybook / Vue CLI */
      useBuiltIns: false,
      /* Disabled due to clash with Storybook MDX */
      jsx: false
    }
  ]]
};