Web Accessibility Deep Dive — ARIA, the Accessibility Tree, and Complex Widgets
A senior guide to the accessibility tree, ARIA authoring patterns, keyboard semantics, live regions, and pragmatic a11y testing for design systems.
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Forms & the Constraint Validation API — Native Validation Done Right
Native HTML form validation deep-dive: ValidityState, setCustomValidity, async/cross-field patterns, ARIA errors, FormData — and why the server always wins.