{ "presets": [ "react", ["env", { "modules": false, "targets": { "browsers": [ "last 2 versions" ] } }] ], "plugins": [ ["inline-react-svg", { "ignorePattern": "libre-franklin" }], "transform-class-properties", ["transform-object-rest-spread", { "useBuiltIns": true }], ["transform-react-jsx", { "useBuiltIns": true }], "transform-exponentiation-operator" ], "env": { "development": { "plugins": [ "transform-react-jsx-source", "transform-react-jsx-self" ] }, "test": { "presets": [ ["env", { "targets": { "node": "current" } }] ], "plugins": [ ["babel-plugin-webpack-alias", { "config": "${CONFIG}" }] ] }, "production": { "plugins": [ // "transform-react-constant-elements" enable when #5325 is fixed ] } } }