You click "Add to Cart" and a little notification pops up: "Item added!" You submit a form and see "Thank you, your message has been sent." You start typing in a search box and results appear below as you type. These instant feedback messages are everywhere on modern websites - but are they accessible to everyone?
For sighted users, these visual cues are obvious. But for someone using a screen reader, these dynamic updates can be completely invisible unless they're coded properly. The page content changed, but their screen reader said nothing about it.
