Currently the GPUPresentationContext interface is only exposed to Window contexts, certainly it should also be exposed to DedicatedWorkers (according to what was said in #403).
[Exposed=(Window,, DedicatedWorker)]
and related, while in multiple places it's said [[canvas]] can be an OffscreenCanvas, its definition states
[[canvas]] of type HTMLCanvasElement.
OffscreenCanvas should be added, though I'm not sure of the nomenclature here.
Currently the GPUPresentationContext interface is only exposed to Window contexts, certainly it should also be exposed to DedicatedWorkers (according to what was said in #403).
and related, while in multiple places it's said
[[canvas]]can be anOffscreenCanvas, its definition statesOffscreenCanvas should be added, though I'm not sure of the nomenclature here.