ElementInternals: ariaLive property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since October 2023.
The ariaLive property of the ElementInternals interface reflects the value of the aria-live attribute, which indicates that an element will be updated, and describes the types of updates the user agents, assistive technologies, and user can expect from the live region.
Note:
Setting aria attributes on ElementInternals allows default semantics to be defined on a custom element. These may be overwritten by author-defined attributes, but ensure that default semantics are retained should the author delete those attributes, or fail to add them at all. For more information see the Accessibility Object Model explainer.
Value
A string with one of the following values:
"assertive"-
Indicates that updates to the region have the highest priority and should be presented the user immediately.
"off"-
Indicates that updates to the region should not be presented to the user unless the user is currently focused on that region.
"polite"-
Indicates that updates to the region should be presented at the next graceful opportunity, such as at the end of speaking the current sentence or when the user pauses typing.
Examples
In this example the value of ariaLive is set to "assertive".
class CustomControl extends HTMLElement {
constructor() {
super();
this.internals_ = this.attachInternals();
this.internals_.ariaLive = "assertive";
}
// …
}
Specifications
| Specification |
|---|
| Accessible Rich Internet Applications (WAI-ARIA) # dom-ariamixin-arialive |
Browser compatibility
| desktop | mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ariaLive
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support