Accessibility. point.id.indexOf is not a function

[dknight]

Expected behaviour

In accessibility module's medthod getPointXDescription() there is a chunk

point.id.indexOf('highcharts-') < 0

but point.id might be a number, Number class doesn't have method indexOf This causes the error TypeError: point.id.indexOf is not a function

Actual behaviour

String(point.id).indexOf('highcharts-') < 0

Product version

Highcharts, 10.1.0

Affected browser(s)

All

[pawellysy]

Hello @dknight, thanks for reporting a bug!
Here is the simplified demo: https://jsfiddle.net/BlackLabel/9b1p5vkn/178/