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DOMTokenList validation

Category

DOM

Type

New or changed feature

Status

Enabled by default (Chrome 50)

Intent stage

None

Summary

DOMTokenList has a "supported tokens" concept which will enable feature detection of things like sandbox flags and link relations.

Standards & signals

• Specification: https://dom.spec.whatwg.org/#concept-supported-tokens
• Firefox: Positive
• Safari: No signal
• Web developers: No signals
• Tracking bug: https://crbug.com/557597

Docs: https://developers.google.com/web/updates/2016/03/domtokenlist-validation-added-in-chrome-50 https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/supports

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