To improve how the cache is handled, it would be helpful to add a version number to highcharts.css to match the js file. Then updates in the future will clearly bust the cache when a new version of highcharts is used. For example, rename to highcharts-5.0.12.css and change the references in the html files.
To improve how the cache is handled, it would be helpful to add a version number to highcharts.css to match the js file. Then updates in the future will clearly bust the cache when a new version of highcharts is used. For example, rename to highcharts-5.0.12.css and change the references in the html files.