Google PageSpeed Insights is emitting the following warning: **Avoid serving legacy JavaScript to modern browsers** Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/baseline?utm_source=lighthouse&utm_medium=lr) features, unless you know you must support legacy browsers. [Learn why most sites can deploy ES6+ code without transpiling](https://philipwalton.com/articles/the-state-of-es5-on-the-web/)LCPFCP URL Est Savings Google CDN cdn 0.0 KiB […js/jsapi_compiled_ui_module.js](https://www.gstatic.com/charts/52/js/jsapi_compiled_ui_module.js)(www.gstatic.com) 0.0 KiB […js/jsapi_compiled_ui_module.js:85:419](https://www.gstatic.com/charts/52/js/jsapi_compiled_ui_module.js)(www.gstatic.com) @babel/plugin-transform-regenerator