.babelrc

{
  "plugins": [
    "markdown-in-js/babel"
  ],
  "env": {
    "development": {
      "presets": [
        [
          "next/babel",
          {
            "preset-env": {
              "targets": "defaults, IE 11, iOS 9"
            }
          }
        ]
      ]
    },
    "production": {
      "presets": [
        [
          "next/babel",
          {
            "preset-env": {
              "targets": "defaults, IE 11, iOS 9"
            }
          }
        ]
      ]
    },
    "test": {
      "presets": [
        [
          "next/babel",
          {
            "preset-env": {
              "modules": "commonjs",
              "targets": {
                "node": true
              }
            }
          }
        ]
      ]
    }
  }
}