Ember rest spread

.eslintrc

module.exports = {
  root: true,
  parserOptions: {
    ecmaVersion: 2017,
    sourceType: 'module',
    ecmaFeatures: {
      'experimentalObjectRestSpread': true,
    }
  },
  extends: 'eslint:recommended',
  env: {
    browser: true
  },
  rules: {
  }
};

ember-cli-build.js

let app = new EmberApp(defaults, {
  babel: {
    plugins: [
      'transform-object-rest-spread',
    ]
  }
  // Add options here
});

package.json

"babel-plugin-transform-object-rest-spread": "^6.23.0",