v-data-table sortable columns lack aria-sort: need ARIA support for screen readers

Problem Overview

The Vuetify v-data-table component supports column sorting via header clicks, but the generated <th> elements do not include an aria-sort attribute. Screen readers cannot announce the current sort direction, which conflicts with WCAG 2.1 AA for dynamic content.

Current Constraints

• Default component does not set aria-sort automatically.
• Custom header slots can add aria-sort, but no guidance exists.
• Behavior is consistent across Vuetify 2.x and 3.x releases.

Unresolved Questions

1. Is there an official or recommended method to automatically apply aria-sort to sortable headers?
2. Will upcoming Vuetify releases introduce built‑in ARIA support for v-data-table?
3. What best practices should developers follow when using custom header slots to ensure accessibility?