254864 2023-04-01 03:05:57 -0700 Implement [AllowShared] suport in Web IDL 2026-04-18 21:31:40 -0700 1 1 1 Unclassified WebKit DOM WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://github.com/whatwg/webidl/issues/1491 InRadar P2 Normal --- 258131 1 annevk annevk ashvayka cdumez heycam mark.lam webkit-bug-importer ysuzuki oldest_to_newest 1945943 0 annevk 2023-04-01 03:05:57 -0700 It seems that we currently don't throw in places that are not supposed to take shared memory: https://wpt.fyi/results/xhr/send-data-sharedarraybuffer.any.html. 1947486 1 webkit-bug-importer 2023-04-08 03:06:17 -0700 <rdar://problem/107786134> 1953495 2 annevk 2023-05-07 03:50:09 -0700 Per https://github.com/WebKit/WebKit/commit/02a7ddd1949f734535c90d93a6d10eea06afcdce#diff-93b28dd1c69f1ae018f811d9fa195b7ccff18e02ffca56c1864ba79ebbe56b30 we have at least some support for [AllowShared], so why does the IDL layer not end up throwing here? Yusuke, do you know? 1994846 3 ysuzuki 2023-11-26 14:52:17 -0800 (In reply to Anne van Kesteren from comment #2) > Per > https://github.com/WebKit/WebKit/commit/ > 02a7ddd1949f734535c90d93a6d10eea06afcdce#diff- > 93b28dd1c69f1ae018f811d9fa195b7ccff18e02ffca56c1864ba79ebbe56b30 we have at > least some support for [AllowShared], so why does the IDL layer not end up > throwing here? > > Yusuke, do you know? I have no idea, probably XHR is not using AllowShared. 1994847 4 ysuzuki 2023-11-26 14:53:11 -0800 (In reply to Yusuke Suzuki from comment #3) > (In reply to Anne van Kesteren from comment #2) > > Per > > https://github.com/WebKit/WebKit/commit/ > > 02a7ddd1949f734535c90d93a6d10eea06afcdce#diff- > > 93b28dd1c69f1ae018f811d9fa195b7ccff18e02ffca56c1864ba79ebbe56b30 we have at > > least some support for [AllowShared], so why does the IDL layer not end up > > throwing here? > > > > Yusuke, do you know? > > I have no idea, probably XHR is not using AllowShared. It is probably largely depending on how XHR is implementing send function, I guess. 2119223 5 annevk 2025-05-23 00:52:28 -0700 I think I figured it out. What happens is that we apply ToString because we treat them as distinct types which does not quite match https://webidl.spec.whatwg.org/#js-union I think this is correct for SharedArrayBuffer now that SharedArrayBuffer is a standalone type in Web IDL (though this might need more discussion), but this is incorrect for views on a SharedArrayBuffer. 2201515 6 annevk 2026-04-17 08:23:18 -0700 Pull request: https://github.com/WebKit/WebKit/pull/62978 2201906 7 ews-feeder 2026-04-18 21:31:38 -0700 Committed 311536@main (7eb28729693c): <https://commits.webkit.org/311536@main> Reviewed commits have been landed. Closing PR #62978 and removing active labels.