no-redundant-roles.md
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no-redundant-roles
Some HTML elements have native semantics that are implemented by the browser. This includes default/implicit ARIA roles. Setting an ARIA role that matches its default/implicit role is redundant since it is already set by the browser.
Rule details
The default options for this rule allow an implicit role of navigation to be applied to a nav element as is advised by w3. The options are provided as an object keyed by HTML element name; the value is an array of implicit ARIA roles that are allowed on the specified element.
{
'jsx-a11y/no-redundant-roles': [
'error',
{
nav: ['navigation'],
},
}
Succeed
<div />
<button role="presentation" />
<MyComponent role="main" />
Fail
<button role="button" />
<img role="img" src="foo.jpg" />
Accessibility guidelines
General best practice (reference resources)