Bug 235200

Summary:	[Readable Streams API] Reject pending reads when releasing reader
Product:	WebKit	Reporter:	Mattias Buelens <mattias.buelens>
Component:	WebCore Misc.	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED CONFIGURATION CHANGED
Severity:	Normal	CC:	mattias.buelens, webkit-bug-importer, youennf
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Mattias Buelens 2022-01-13 13:46:18 PST

Previously, calling ReadableStreamDefaultReader.releaseLock() or ReadableStreamBYOBReader.releaseLock() while there are pending read() requests would throw a TypeError.
The specification has been changed to allow this case, and to reject such pending read() requests instead.

Standard change: https://github.com/whatwg/streams/pull/1168
Tests: https://github.com/web-platform-tests/wpt/pull/32072

Comment 1 Mattias Buelens 2022-01-13 13:46:57 PST

We just merged this change into the spec, but we accidentally forgot that this also affects default readers. Since default readers are already implemented in multiple engines, our process mandates that we should have first asked whether WebKit is interested in this spec change. Our apologies.

If you have any objections, please let us know in https://github.com/whatwg/streams/pull/1168

Comment 2 Radar WebKit Bug Importer 2022-01-20 13:47:15 PST

<rdar://problem/87847830>

Comment 3 Mattias Buelens 2023-06-19 04:19:02 PDT

This was fixed in https://bugs.webkit.org/show_bug.cgi?id=254511

Feel free to close this bug.