BASELINE NowYouCanUse.com
Widely Available Custom elements
id: autonomous-custom-elements

Autonomous custom elements

Autonomous custom elements are HTML elements with a hyphenated tag name (like <example-element>) that have behaviors you define.
Baseline Status: Achieved Widely Available on Jul 15, 2022 (Cross-browser Newly Available since Jan 15, 2020).
Desktop Browser Engine Support
Google Chrome
54
Supported
Mozilla Firefox
63
Supported
Apple Safari
10.1
Supported
Microsoft Edge
79
Supported
Mobile Browser Engine Support
Chrome Android
54
Firefox Android
63
Safari iOS
10.3
Specifications and References
Specification ↗ Feature XML ↗
MDN Browser Compat Data Keys:
api.CustomElementRegistry ↗ api.CustomElementRegistry.define ↗ api.CustomElementRegistry.define.disabledFeatures_static_property ↗ api.CustomElementRegistry.get ↗ api.CustomElementRegistry.getName ↗ api.CustomElementRegistry.upgrade ↗ api.CustomElementRegistry.whenDefined ↗ api.Window.customElements ↗ css.selectors.defined ↗