Calendar component – Disabled day cells rendered with aria‑selected="false" on non‑interactive <span>

[meanstackmax]

Describe the bug

In version 10.9.7 of PrimeReact, using the Calendar component with e.g. minDate, maxDate, disabledDays, or non‑selectable days results in day‑cells that are non‑selectable, rendered as s (no role) but still carry the attribute aria‑selected="false".

Why this is a problem: According to the ARIA specification, the aria‑selected attribute is only valid on elements with roles that support selection (such as gridcell, option, row, or tab).

Having aria‑selected="false" on a without a selection role triggers accessibility tool errors (e.g., Axe DevTools reports: “Ensure an element’s role supports its ARIA attributes. ARIA attribute is not allowed: aria-selected="false"”).

Reproducer

https://stackblitz.com/run?file=src%2FApp.tsx

System Information

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    primereact: latest => 10.9.7 
    react: 18.3.1 => 18.3.1

Steps to reproduce the behavior

1. Render <Calendar value={…} minDate={…} maxDate={…} /> (or a disabled‑dates setup)

2. Inspect a disabled‑day cell (for example, outside minDate/maxDate or a day disabled via disabledDays)

3. The cell is a <span class="p-disabled" … aria‑selected="false" …>

4. Inspect Calendar layout with Axe Dev Tools - it reports: “ARIA attribute is not allowed: aria‑selected=”false””

Expected behavior

• For non‑selectable/disabled cells, aria‑selected should not be present, or the cell should have a role supporting aria‑selected.

• The appropriate attribute might be aria‑disabled="true" or no ARIA selected attribute for disabled non‑interactive cells.

Please, remove the aria‑selected="false" attribute from disabled day cells (or apply the correct role) to resolve the accessibility violation.