Needs to render in browser first, right?

[MaxHorstmann]

Looks like this first renders the chart in a browser and then sends the svg string back to the server for export - correct?

Any idea how to do this completely server-side?

[Tek4]

Right. Highcharts runs on the client browser. To do things server-side, you'd have to run Highcharts on the server. I'm sure plenty of products exist for server-side charting. And, perhaps, there is info about doing so with Highcharts on the Highcharts site. However, a huge feature of Highcharts is user interactivity. You'd lose that going server-side.