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Custom Elements v1

Category

Web Components

Type

New or changed feature

Status

Enabled by default (Chrome 54)

Intent stage

None

Summary

Custom Elements let web authors define their own tags. Chrome shipped an implementation based on the working draft of the spec in M33. The current editor's draft of the spec has significant updates based on web developer and implementer feedback.

Standards & signals

• Specification: https://html.spec.whatwg.org/#custom-elements
• Firefox: In development
• Safari: Shipped/Shipping
• Web developers: Positive
• Tracking bug: https://bugs.chromium.org/p/chromium/issues/detail?id=594918

Docs: https://developers.google.com/web/fundamentals/web-components/customelements https://docs.google.com/a/chromium.org/presentation/d/179IRXRFmDGb3P60OVsoAIsElcaOp__5EuIWLcL8oNos/edit?usp=sharing

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