News and press releases | University of Helsinki

Careers at the University of Helsinki | University of Helsinki

People | University of Helsinki

Events | University of Helsinki

About us | University of Helsinki

Research units | University of Helsinki

We are the University of Helsinki | University of Helsinki

Doctoral school | University of Helsinki

News | University of Helsinki

Innovations and cooperation | University of Helsinki

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

June 2025

May 2025

University of Helsinki

	Title / URL	Issues
	News and press releases \| University of Helsinkiwww.helsinki.fi/en/news/news-and-press-releases	3
	Careers at the University of Helsinki \| University of Helsinkiwww.helsinki.fi/en/about-us/careers	1
	People \| University of Helsinkiwww.helsinki.fi/en/about-us/people	1
	Events \| University of Helsinkiwww.helsinki.fi/en/news/events	1
	About us \| University of Helsinkiwww.helsinki.fi/en/about-us	1
	Research units \| University of Helsinkiwww.helsinki.fi/en/research/research-units	1
	We are the University of Helsinki \| University of Helsinkiwww.helsinki.fi/en/about-us/university-helsinki	1
	Doctoral school \| University of Helsinkiwww.helsinki.fi/en/research/doctoral-school	1
	News \| University of Helsinkiwww.helsinki.fi/en/news	1
	Innovations and cooperation \| University of Helsinkiwww.helsinki.fi/en/innovations-and-cooperation	1

Fix missing ARIA label IDs

University of Helsinki

Where this issue has occurred