[button] NVDA doesn't announce loading state example correctly #4249
Description
Bug report
Current behavior
The "Loading states" variant includes a button that becomes temporarily disabled and changes its visible label from "Submit" to "Submitting". NVDA does not announce the "Submitting" text, only "Unavailable".
VoiceOver announces both the changed label and dimmed (disabled) state correctly.
Expected behavior
All screen readers should announce "submitting".
Reproducible example
- On a Windows machine, turn on NVDA screen reader
- Navigate to Button: Loading states
- Activate the button
- Note only "unavailable" is announced and not the visible "submitting" text
Base UI version
v1.2.0
Which browser are you using?
Chrome
Which OS are you using?
Windows
Which assistive tech are you using (if applicable)?
NVDA
Additional context
The button could have an aria-live attribute on it by default.