Alberta School of Business

Faculty of Medicine & Dentistry

Faculty of Rehabilitation Medicine

Augustana Campus

Faculty of Nursing

Faculty of Arts

College of Health Sciences

Faculty of Graduate & Postdoctoral Studies

Research + Innovation

Our Research | Research + Innovation

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

May 2025

April 2025

University of Alberta

Title / URL	Issues
Alberta School of Businesswww.ualberta.ca/en/business/index.html	9
Faculty of Medicine & Dentistrywww.ualberta.ca/en/medicine/index.html	8
Faculty of Rehabilitation Medicinewww.ualberta.ca/en/rehabilitation/index.html	7
Augustana Campuswww.ualberta.ca/en/augustana/index.html	7
Faculty of Nursingwww.ualberta.ca/en/nursing/index.html	7
Faculty of Artswww.ualberta.ca/en/arts/index.html	7
College of Health Scienceswww.ualberta.ca/en/health-sciences/index.html	7
Faculty of Graduate & Postdoctoral Studieswww.ualberta.ca/en/graduate-studies/index.html	6
Research + Innovationwww.ualberta.ca/en/research/index.html	6
Our Research \| Research + Innovationwww.ualberta.ca/en/research/our-research/index.html	6

Fix missing ARIA label IDs

University of Alberta

Where this issue has occurred