<DropDown> component not read in Jaws (missing aria-live tag)

[bedwar2]

Describe the bug
The DropDown Component does not contain the aria-live="assertive" which is a recommended fix for Jaws not reading a drop down box and it's options.

To Reproduce
Steps to reproduce the behavior:

1. Go to DropDown documentation at design.cms.gov
2. Inspect and see there is no "aria-live"
3. Use Jaws if you have it. When tabbing to DropDown and using arrows, Jaws does not read the options

Expected behavior
Jaws should read the options.

Screenshots
N/A

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome
• Version 98

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
There may be a better way to address this, but 508 testers reporting they can't get Jaws to read the drop down box. I had them run this command document.getElementsByTagName('select')[0].setAttribute('aria-live', 'assertive') and Jaws read the selections after that.

[zarahzachz]

Thanks for filing this bug! I've created an issue in Jira if you'd like to set yourself to watcher to monitor its progress.

[danbivins]

@zarahzachz I see the Jira ticket is closed for this but this GH issue is open. Just thought I'd let you know.