local property
Whether the chart should be exported using the browser's built-in capabilities, allowing offline exports without requiring access to the Highcharts export server, or sent directly to the export server for processing and downloading.
This option is different from exporting.fallbackToExportServer, which
controls whether the export server should be used as a fallback only if
the local export fails. In contrast, exporting.local explicitly defines
which export method to use.
API Docs: https://api.highcharts.com/highcharts/exporting.local
Implementation
bool? local;