score:1

It looks like regression, I reported it on Highcharts Github issue channel where you can follow this thread: https://github.com/highcharts/highcharts/issues/16231

Try to use the last working version: https://jsfiddle.net/BlackLabel/6qhgfLk4/

<script src="https://code.highcharts.com/9.1.2/highcharts.js"></script>
<script src="https://code.highcharts.com/9.1.2/modules/exporting.js"></script>

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