Electron Releases

Description of Change

• net.request never told its chunked upload getter when the request ended. A protocol handler that had parked a body.read() on the upload stream then waited forever for a GetSize reply that could not come, and the stream's SelfKeepAlive kept it rooted. SimpleURLLoaderWrapper::OnComplete and Cancel now abort the getter, so the pending read rejects with the request's net error.
• This is the cause of the cpp heap url loader module keeps a ChunkedDataPipeReadableStream alive … hang seen on the ASan and UBSan shard-3 jobs (three unrelated PRs on 2026-08-31, e.g. this run). That test's handler never responds and drops the one-time callback; the native side only references it weakly (gin_helper/callback.cc), so the test's own GC loop could collect it, which fails the request with ERR_FAILED before request.end() runs. Whether the GC caught it in time is timing-dependent, hence the flake. The handler now holds the callback for the test's duration.
• New api-net-spec cases: a handler parks an upload-stream read and the request is aborted or failed (the read rejects with ERR_FAILED), and a response completes while a write is still in flight (the write callback gets ERR_ABORTED).
• The first CI run of this PR hit an ASan use-after-poison in mojo::ReceiverSetState::Entry::OnDisconnect. With poison_history_size on, ASan attributes the poison to cppgc's UnmarkedObjectsPoisoner at the start of a sweep: a SimpleURLLoaderWrapper had been found dead but not yet finalized when the network service's disconnect for one of its observer receivers arrived. UtilityProcessWrapper has the same ReceiverSet shape. Both now get a cppgc pre-finalizer that drops the receivers before the sweep, as ReplyChannel and the IPC renderer classes already do. Locally the 28-file ASan shard reproduced the crash on the first version and runs clean with this one.

Verified locally on an ASan build: the original cpp-heap spec failed 3/3 before and passes after, a standalone repro with the callback still collectable completes instead of hanging, and the new net specs pass.

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Release Notes

Notes: Fixed a pending read on a net.request chunked upload stream inside a protocol handler never settling when the request failed or was aborted.