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Coverage / media-source

Media Source Extensions™

Specification: w3c.github.io/media-source/. 7 interfaces defined here, 44 members exposed on Window (Web IDL). Group: Media and devices.

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 44)0 of 7
happy-dom21.0.30% (0 of 44)0 of 7
jsdom30.1.30% (0 of 44)0 of 7
linkedom0.18.130% (0 of 44)0 of 7
10 of 10 interfaces
AudioTrack1 member added to AudioTrack (defined in HTML)warpdom: 0/1happy-dom: 0/1jsdom: 0/1linkedom: 0/1
BufferedChangeEvent2 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
ManagedMediaSource3 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
ManagedSourceBuffer1 memberwarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
MediaSource14 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
MediaSourceHandle0 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
SourceBuffer18 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
SourceBufferList3 memberswarpdom: Missinghappy-dom: Missingjsdom: Missinglinkedom: Missing
TextTrack1 member added to TextTrack (defined in HTML)warpdom: 0/1happy-dom: 0/1jsdom: 0/1linkedom: 0/1
VideoTrack1 member added to VideoTrack (defined in HTML)warpdom: 0/1happy-dom: 0/1jsdom: 0/1linkedom: 0/1

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