accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
102 lines (87 loc) • 4.72 kB
HTML
<html lang="en-US">
<head>
<title>aria_attribute_valid - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"group":"ARIA attributes should be valid for the element and ARIA role to which they are assigned","Pass":"ARIA attributes are valid for the element and ARIA role","Fail_invalid_role_attr":"The ARIA attributes \"{0}\" are not valid for the element <{1}> with ARIA role \"{2}\"","Fail_invalid_implicit_role_attr":"The ARIA attributes \"{0}\" are not valid for the element <{1}> with implicit ARIA role \"{2}\""}};
RULE_ID = "aria_attribute_valid"
</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">
<div class="bx--row">
<div class="bx--col-sm-4 bx--col-md-8 bx--col-lg-16 toolHead">
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<h3 id="ruleMessage"></h3>
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<div class="bx--col-sm-4 bx--col-md-5 bx--col-lg-8 toolMain">
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<mark-down><script type="text/plain">
### Why is this important?
When elements are assigned an ARIA `role`, ARIA specifies which attributes are valid for that role.
If invalid ARIA attributes are used, assistive technologies may not be able to interpret and operate the element accurately for users.
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<div id="locSnippet"></div>
### What to do
* Remove ARIA state or property attributes that are not valid for the element role
* **Or**, change to a role that supports the intended behavior of the element, using the ARIA specification as a guide
In the following example, the element references only valid ARIA attributes for an element with the role of `"tree"`, a global `aria-labelledby` property, and an `aria-expanded` state:
```
<ul id="tree1" class="tree root-level" role="tree" aria-labelledby="label_1">
<li id="fruits" class="tree-parent" role="treeitem" tabindex="0" aria-expanded="true">
<span>Fruits</span>
```
</script></mark-down>
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<div id="ruleInfo"></div>
</div>
<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
* [ARIA specification - States and Properties](https://www.w3.org/TR/wai-aria-1.2/#introstates)
* [ACT rule - ARIA state or property is permitted](https://www.w3.org/WAI/standards-guidelines/act/rules/5c01ea/)
* [ACT rule - Element marked as decorative is not exposed](https://www.w3.org/WAI/standards-guidelines/act/rules/46ca7f/)
### Who does this affect?
* People using a screen reader, including blind, low vision, and neurodivergent people
* People with dexterity impairments using voice control
</script></mark-down>
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</div>
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</body>
</html>