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React dom invalid aria hook (#7744)

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* Add a hook that throws a runtime warning for invalid WAI ARIA attributes and values.

* Resolved linting errors.

* Added a test case for many props.

* Added a test case for ARIA attribute proper casing.

* Added a warning for uppercased attributes to ReactDOMInvalidARIAHook
This commit is contained in:
J. Renée Beach
2016-09-27 18:53:14 -07:00
committed by Brandon Dail
parent b6ba117b7e
commit 95896408e7
1 changed files with 11 additions and 0 deletions
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warnings/invalid-aria-prop.md Normal file
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---
title: Invalid ARIA Prop Warning
layout: single
permalink: warnings/invalid-aria-prop.html
---
The invalid-aria-prop warning will fire if you attempt to render a DOM element with an aria-* prop that does not exist in the Web Accessibility Initiative (WAI) Accessible Rich Internet Application (ARIA) [specification](https://www.w3.org/TR/wai-aria-1.1/#states_and_properties).
1. If you feel that you are using a valid prop, check the spelling carefully. `aria-labelledby` and `aria-activedescendant` are often misspelled.
2. React does not yet recognize the attribute you specified. This will likely be fixed in a future version of React. However, React currently strips all unknown attributes, so specifying them in your React app will not cause them to be rendered