.babelrc

{
  "presets": [
    "es2015",
    "stage-1"
  ],
  "plugins": [
    "transform-class-properties",
    "transform-flow-strip-types",
    "transform-es2015-modules-umd",
    [
      "rename-umd-globals", {
        "index": "VanillaModal"
      }
    ]
  ]
}