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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 2024

May 2024

Trine University

Title / URL	Issues
First time visit: View without clicking anythingtrine.edu/	7
Trine University \| Hometrine.edu/	7
Trine University \| Hometrine.edu/index.aspx	7
TrineOnlinetrine.edu/online/	5
Community Connectionstrine.edu/about/community.aspx	5
Hometrine.edu/alumni/index.aspx	4
International Students - Graduate Degrees \| Trine Universitytrine.edu/international/	1
Campus Life \| Trine Universitytrine.edu/campus-life/	1
President's Office \| Trine Universitytrine.edu/about/leadership/	1

Fix missing ARIA label IDs

Trine University

Where this issue has occurred