Bug: aria-description is a valid ARIA property

[nordfjord]

React version: 16.x

Steps To Reproduce

1. render(<div aria-description="Description" />)

Link to code example:
flems link

The current behavior

warning: Invalid aria prop `aria-description` on <div> tag

The expected behavior

Nothing. It's part of WAI-ARIA 1.3

https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Annotations

[eps1lon]

I guess the question is what React considers a "valid" aria prop:

1. a specific version (range) of Aria
2. a version with a particular state (WR,CR,PR,REC)
3. what spec editors consider the "stable" version
4. any aria prop that ever existed

[itudoradrian]

Yeah, it seems they've added support for this fairly recently.

w3c/aria#891

[nordfjord]

We might also ask: “Why is react telling me what is and isn’t a valid aria attribute.”

React isn’t the source of truth for that information.

It sounds like the job of a linter rather than something react should warn about.

[itudoradrian]

I think it might be from a compiler.

[nordfjord]

It's from here: https://github.com/facebook/react/blob/b4f119cdf1defe2437e00022f670c6ef818cd43f/packages/react-dom/src/shared/validAriaProperties.js

[gaearon]

We might also ask: “Why is react telling me what is and isn’t a valid aria attribute.”

The reason is that they're often misspelled so on the whole it's beneficial to warn for unknown ones. I'll merge the PR.

[gaearon]

Fixed by #22142. Will appear in 18.