Freedom of information | BookTrust

News and features: What's happening in children's books | BookTrust

About BookTrust, the UK’s largest children’s reading charity | BookTrust

Features | BookTrust

Work at BookTrust | BookTrust

What we do at BookTrust | BookTrust

BookTrust: Getting children reading | BookTrust

BookTrust news | BookTrust

Become a Friend | BookTrust

BookTrust Cymru | BookTrust

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

February 2025

January 2025

Book Trust

Title / URL	Issues
Freedom of information \| BookTrustwww.booktrust.org.uk/freedom-of-information/	1
News and features: What's happening in children's books \| BookTrustwww.booktrust.org.uk/news-and-features/	1
About BookTrust, the UK’s largest children’s reading charity \| BookTrustwww.booktrust.org.uk/about-us/	1
Features \| BookTrustwww.booktrust.org.uk/news-and-features/features/	1
Work at BookTrust \| BookTrustwww.booktrust.org.uk/about-us/work-at-booktrust/	1
What we do at BookTrust \| BookTrustwww.booktrust.org.uk/what-we-do/	1
BookTrust: Getting children reading \| BookTrustwww.booktrust.org.uk/	1
BookTrust news \| BookTrustwww.booktrust.org.uk/news-and-features/news/	1
Become a Friend \| BookTrustwww.booktrust.org.uk/support-us/become-a-friend/	1
BookTrust Cymru \| BookTrustwww.booktrust.org.uk/what-we-do/booktrust-cymru/	1

Fix missing ARIA label IDs

Book Trust

Where this issue has occurred