HTMLThông báo cho screen readers về nội dung thay đổi động. polite: đợi user idle rồi đọc. assertive: ngắt ngay để đọc.
Dùng cho notifications, chat messages, live search results, form errors.
Announces dynamically changed content to screen readers. polite: waits for the user to be idle, then reads. assertive: interrupts immediately.
Used for notifications, chat messages, live search results, and form errors.