Financial Aid at Cooper | The Cooper Union

Contact & Location | The Cooper Union

Visit The Cooper Union | The Cooper Union

Frequently Asked Questions | The Cooper Union

The Cooper Union for the Advancement of Science and Art

| The Cooper Union

Officers | The Cooper Union

About Cooper Union | The Cooper Union

History | The Cooper Union

The Irwin S. Chanin School of Architecture | The Cooper Union

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

January 2025

December 2024

The Cooper Union

Title / URL	Issues
Financial Aid at Cooper \| The Cooper Unioncooper.edu/admissions/afford	4
Contact & Location \| The Cooper Unioncooper.edu/about/contact	4
Visit The Cooper Union \| The Cooper Unioncooper.edu/admissions/visit	4
Frequently Asked Questions \| The Cooper Unioncooper.edu/admissions/faq	4
The Cooper Union for the Advancement of Science and Artcooper.edu/	4
\| The Cooper Unioncooper.edu/people	4
Officers \| The Cooper Unioncooper.edu/about/officers	4
About Cooper Union \| The Cooper Unioncooper.edu/about	4
History \| The Cooper Unioncooper.edu/about/history	4
The Irwin S. Chanin School of Architecture \| The Cooper Unioncooper.edu/architecture	4

Fix missing ARIA label IDs

The Cooper Union

Where this issue has occurred