accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
108 lines (88 loc) • 4.41 kB
HTML
<html lang="en-US">
<head>
<title>aria_role_redundant - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"pass":"An explicitly-assigned ARIA role is not redundant with the implicit role of the element","fail_redundant":"The explicitly-assigned ARIA role \"{0}\" is redundant with the implicit role of the element <{1}>","group":"An explicitly-assigned ARIA role should not be redundant with the implicit role of the element"}};
RULE_ID = "aria_role_redundant"
</script>
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<link rel="icon" href="https://ibm.com/able/favicon-32x32.png" type="image/png">
<link rel="icon" href="https://ibm.com/able/favicon.svg" type="image/svg+xml">
<link rel="stylesheet" href="../common/help.css" />
<script type="module">
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/code-snippet.min.js";
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/list.min.js";
</script>
<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
<script src="../common/help.js"></script>
</head>
<body>
<div class="bx--grid toolHelp">
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<div class="bx--col-sm-4 bx--col-md-8 bx--col-lg-16 toolHead">
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<mark-down><script type="text/plain">
### Why is this important?
A best practice is to avoid adding an ARIA explicit role to an HTML element whose implicit role has the identical semantic meaning.
This will eliminate the extra browser processing to determine the role of the element to add to the DOM.
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### What to do
* Remove the redundant ARIA role from the element.
Note the redundant ARIA and HTML roles shown in the following examples:
```
<button type="button" role="button">Save</button>
<input type="button" role="button" value="Save">
```
In the following corrected examples, only an HTML role is used:
```
<button type="button" id="saveChanges">Save</button>
<input type="button" value="Save">
```
Note: The [4.1.1 Parsing](https://www.w3.org/WAI/WCAG21/Understanding/parsing.html) requirement was removed from WCAG.
However, the Checker will report an issue against another accessibility requirement when it detects it causes an accessibility issue.
</script></mark-down>
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<div id="ruleInfo"></div>
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<div class="bx--col-sm-4 bx--col-md-3 bx--col-lg-4 toolSide">
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<mark-down><script type="text/plain">
### About this requirement
<!-- Remove 4.1.1 * [IBM 4.1.2 Name, role, value](https://www.ibm.com/able/requirements/requirements/#4_1_2) -->
* [ARIA in HTML - Avoid specifying redundant roles](https://www.w3.org/TR/html-aria/#avoid-specifying-redundant-roles)
### Who does this affect?
* People using a screen reader, including blind, low vision, and neurodivergent people
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</body>
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