.babelrc

{
  "presets": [
    [
      "env",
      {
        "targets": {
          "browsers": [
            "last 2 versions",
            "ie > 9"
          ]
        },
        "modules": false
      }
    ],
    "stage-2",
    "react"
  ],
  "env": {
    "test": {
      "plugins": [
        "transform-es2015-modules-commonjs"
      ]
    },
    "production": {
      "plugins": [
        "react-remove-properties"
      ]
    }
  }
}