It appears that by default Highcharts uses a space as a delimiter instead of a comma when displaying numbers on a chart. To change the global delimiter, typically, one would use “setOptions”. However, I’m not quite sure how to do this in the advanced options window.
I tried adding the lang/thousandsSep lines without setOptions inside “chartOptions” but it doesn’t have any impact. Any suggestions on how to set the global language object before the chart is initialized?