mediacms/frontend/.babelrc

{
    "presets": [
        "@babel/react",
        [
            "@babel/env",
            {
                "modules": false,
                "useBuiltIns": "usage",
                "corejs": 3,
                "targets": {
                    "browsers": ["defaults"]
                }
            }
        ]
    ],
    "env": {
        "test": {
            "presets": [
                [
                    "@babel/env",
                    {
                        "targets": { "node": "current" }
                    }
                ]
            ]
        }
    }
}