Do not localise date/number data for plugins

A Chart doesn’t show some a chart data under non english localization. The reason why is that data are with decimal dot . Frontend get the data in right format (for example 4.5 ), but frontend convert the data over localization. For example 4.5 to 4,5 .
Chart JS cant work with this data and show no line on chart.

It would be nice set on some place that the data dont want convert.

The data should be delivered in raw format and the plugin interface should have a method to correctly localise them.