Kipnes Lantern | National Arts Centre

Arts Alive | The stage is yours. | National Arts Centre

Events calendar | National Arts Centre (Ottawa)

Produce a show at the NAC | Performance Hall rentals | National Arts Centre (Ottawa)

Tickets and account help | National Arts Centre

Discover | National Arts Centre

NAC Orchestra | National Arts Centre

Discover | Broadway | National Arts Centre

Where wonders unfold | National Arts Centre

BIG BANG Festival | National Arts Centre

When specifying accessible names via `aria-labelledby`, ensure that the 
label elements exist.

## Explanation

Accessible names are required for many parts of a page, including form controls.
One way to accomplish this is to use `aria-labelledby` to specify the ID or IDs of 
other elements which contain a label. For example:

```html
<h2 id="dialog-labell">Important message!</h2>
<dialog aria-labelledby="dialog-label">
```

In this example, the `aria-labelledby` for the `<dialog>` points to an ID of `dialog-label`,
which doesn't exist. The heading it refers to instead has an ID of `dialog-labell`, presumably 
a typo.

## Why this matters

It isn't usually clear when an accessible name is broken, even during user testing.

This check helps to identify where an element clearly intended to have a label, but
that label is missing.

When a label is broken, it may be impossible for a user of assistive technologies
to understand what that element does.

missing-aria-labelled-by

July 2025

June 2025

National Arts Centre

Title / URL	Issues
Kipnes Lantern \| National Arts Centrenac-cna.ca/en/lantern	1
Arts Alive \| The stage is yours. \| National Arts Centrenac-cna.ca/en/artsalive	1
Events calendar \| National Arts Centre (Ottawa)nac-cna.ca/en/calendar/list/2025/04	1
Produce a show at the NAC \| Performance Hall rentals \| National Arts Centre (Ottawa)nac-cna.ca/en/rentals	1
Tickets and account help \| National Arts Centrenac-cna.ca/en/tickets/help	1
Discover \| National Arts Centrenac-cna.ca/en/discover	1
NAC Orchestra \| National Arts Centrenac-cna.ca/en/orchestra	1
Discover \| Broadway \| National Arts Centrenac-cna.ca/en/discover?category=137	1
Where wonders unfold \| National Arts Centrenac-cna.ca/en/season	1
BIG BANG Festival \| National Arts Centrenac-cna.ca/en/bigbang	1

Fix missing ARIA label IDs

National Arts Centre

Where this issue has occurred