René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"stream/iter: push() iterator throw() leaves pending next() unresolved","articleBody":"### Version\n\n26.2.0\n\n### Platform\n\n```text\nmacOS 26.5.0\n```\n\n### Subsystem\n\nstream\n\n### What steps will reproduce the bug?\n\n```js\nimport { setTimeout } from 'node:timers/promises';\nimport { push } from 'node:stream/iter';\n\nconst { readable } = push();\nconst it = readable[Symbol.asyncIterator]();\n\nconst err = new Error('boom');\nconst pendingRead = it.next();\n\nawait it.throw(err);\n\nconsole.log(await Promise.race([\n  pendingRead.then(\n    (value) =\u003e ({ settled: 'fulfilled', value }),\n    (reason) =\u003e ({ settled: 'rejected', reason: reason.message }),\n  ),\n  setTimeout(100, 'timed out'),\n]));\n\n```\n\n### How often does it reproduce? Is there a required condition?\n\nAlways\n\n### What is the expected behavior? Why is that the expected behavior?\n\nThe pending read should settle, likely by rejecting with `err`, when the iterator is thrown. Spec [§7.1](https://stream-iter.jasnell.me/#push-method) says readable `return()`/`throw()` should abort the pipeline and signal cancellation\n\n### What do you see instead?\n\nlogs `timed out`; the pending `it.next()` never settles after `await it.throw(err)`.\n\n### Additional information\n\n_No response_","author":{"url":"https://github.com/trivikr","@type":"Person","name":"trivikr"},"datePublished":"2026-05-25T07:27:21.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/63554/node/issues/63554"}