janina
Posts: 17
Joined: Thu Jul 01, 2021 7:19 pm

Issue with screen reader on heat map

Thu Dec 02, 2021 5:35 pm

Good morning,

I was playing around with heat maps and noticed a reading order issue locally when using a screen reader. When I checked the heat maps demo (https://www.highcharts.com/demo/heatmap), I discovered the same issue. When navigating the heat map with a screen reader (I'm using Apple's VoiceOver), when it gets to the individual heat value squares, it initially ignores the first square at (0,0), starts at square (0,1), and continues reading in the correct order. Once it hits the last square, it goes back and finally reads the first square as though it is the last data point in the series. Is there a workaround for this screen reader issue?

Thanks!

magdalena
Posts: 313
Joined: Tue Aug 24, 2021 1:32 pm

Re: Issue with screen reader on heat map

Fri Dec 03, 2021 3:36 pm

Hi,

Thanks for contacting us!

I've tested it in the browser with NVDA and works correctly. I'm not able to check this on the Apple's VoiceOver, so I provided your question to our Head of Accessibility, and I'll let you know as soon as possible.

Regards!
Magdalena Gut
Highcharts support engineer

magdalena
Posts: 313
Joined: Tue Aug 24, 2021 1:32 pm

Re: Issue with screen reader on heat map

Mon Dec 06, 2021 10:21 am

Hi,

Thank you again for reporting the problem. You will find further information on this case at the following link:
https://github.com/highcharts/highcharts/issues/16758

Regards!
Magdalena Gut
Highcharts support engineer

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