NEW 215485
Implement transferable streams 
https://bugs.webkit.org/show_bug.cgi?id=215485
Summary Implement transferable streams
Adam Rice
Reported 2020-08-13 19:07:02 PDT
Transferable streams permit streams to be transferred to a worker or other realm using postMessage(), where they can be used just like the original stream. Example: const rs = new ReadableStream(); window.postMessage(rs, '*', [rs]); See the explainer https://github.com/whatwg/streams/blob/master/transferable-streams-explainer.md for more motivation. See the spec change at https://github.com/whatwg/streams/pull/1053 and the web platform tests at https://github.com/web-platform-tests/wpt/pull/24546.
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Radar WebKit Bug Importer
Comment 1 2020-08-20 19:07:16 PDT
<rdar://problem/67522801>
Jimmy Wärting
Comment 2 2023-01-13 13:29:30 PST
Importance += 1
youenn fablet
Comment 3 2023-10-03 12:25:41 PDT
*** Bug 262531 has been marked as a duplicate of this bug. ***
Andrey
Comment 4 2024-03-15 09:20:47 PDT
I accidentally found out that it only happens if you use the following header: Cross-Origin-Embedder-Policy `credentialless` instead of `require-corp`. Other engines are tolerant of this difference. Is it on purpose?
kyle
Comment 5 2024-12-22 23:09:26 PST
+1. It sucks that I can't use `ReadableStream` between workers, makes my abstraction much worse.
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