It's not very responsive for mobile devices and has some firefox issues, If you can help with the problems in firefox and the synchronous loading of the chart,

It's not very responsive for mobile devices and has some firefox issues, If you can help with the problems in firefox and the synchronous loading of the chart, please let me know, source code : https://github.com/geekodour/newsmap-react https://github.com/geekodour/newsmap-react