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Coverage / css-regions

CSS Regions Module Level 1

Specification: drafts.csswg.org/css-regions-1/. 2 interfaces defined here, 20 members exposed on Window (Web IDL). Group: Rendering and graphics.

Existence only: “present” means the name is defined where Web IDL puts it, not that it behaves as the standard says. The featured checks test behavior.

Share present per engine
EngineMembers presentInterfaces present
warpdom0.1.6maintainer's engine0% (0 of 20)0 of 2
happy-dom21.0.30% (0 of 20)0 of 2
jsdom30.1.30% (0 of 20)0 of 2
linkedom0.18.130% (0 of 20)0 of 2
4 of 4 interfaces
Document1 member added to Document (defined in DOM)warpdom: 0/1happy-dom: 0/1jsdom: 0/1linkedom: 0/1
Element2 members added to Element (defined in DOM)warpdom: 0/2happy-dom: 0/2jsdom: 0/2linkedom: 0/2
NamedFlow6 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
NamedFlowMap11 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing

Probed 2026-10-19. Data: idl.json (CC BY 4.0).