Error summary and success banners - announced twice with some screen readers

[elceebee]

We have recently had an Accessibility Audit on our product (Apply and Manage). We user the error summary component in a perfectly usual way, in line with the documentation.

The auditors describe the following problem:

"When navigating with screen readers Android TalkBack or JAWS, form validation errors across the site ... are announced multiple times when a form is submitted with empty fields. Error messages should be announced only once to avoid confusion."

And

"Unique to Android TalkBack, when banners are displayed (success banner, and error messages), only the success state is announced, while the accompanying banner text is not announced."

This does not comply with WCAG Level AA 2.2:
4.1.3 Status Messages – https://www.w3.org/WAI/WCAG22/Understanding/status-messages.html

[peteryates]

Thank you for reporting.

Does this happen due to something generated by this library that's not present in the Design System? It aims to follow what happens there 100%.

Happy to chat through it to find what's triggering the multiple announcements.