This test checks the behavior of the ariaNotify
API with an announcement on a specific element.
Setup: Use a screen reader (NVDA, JAWS, VoiceOver, etc.) or other assistive technology that supports the ARIA Notify API.
Instructions: Click the "Run Test" button and listen for the announced text from your screen reader.
Note: If the ariaNotify API is not supported in your browser, the test will show an appropriate error message.
Expected: Screen reader should announce "Hello, world!" using the button element as context.