Transferable streams

### WebKittens _No response_ ### Title of the proposal can streams be transferred via postMessage()? ### URL to the spec https://streams.spec.whatwg.org ### URL to the spec's repository https://github.com/whatwg/streams ### Issue Tracker URL _No response_ ### Explainer URL https://github.com/whatwg/streams/blob/master/transferable-streams-explainer.md ### TAG Design Review URL https://github.com/w3ctag/design-reviews/issues/551 ### Mozilla standards-positions issue URL https://github.com/mozilla/standards-positions/issues/430 ### WebKit Bugzilla URL _No response_ ### Radar URL _No response_ ### Description The specific subsections of the spec are: - https://streams.spec.whatwg.org/#rs-transfer - https://streams.spec.whatwg.org/#ws-transfer - https://streams.spec.whatwg.org/#ts-transfer - https://streams.spec.whatwg.org/#transferrable-streams According to [caniuse](https://caniuse.com/wf-transferable-streams) the other major browsers added support between 2020-2022. I didn't see a tracking issue for it here and it seems like a notable omission, apologies if I missed it while searching.