René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"stream/iter: broadcast strict-backpressure overflow rejects with TypeError instead of RangeError","articleBody":"### Version\n\nmain\n\n### Platform\n\n```text\nmacOS 26.5.2\n```\n\n### Subsystem\n\nstream\n\n### What steps will reproduce the bug?\n\n```js\nimport { broadcast } from 'node:stream/iter';\n\nconst { writer } = broadcast({\n  highWaterMark: 1,\n  backpressure: 'strict',\n});\n\nawait writer.write('one');\nconst pending = writer.write('two');\n\ntry {\n  await writer.write('three');\n} catch (error) {\n  console.log(error.name);\n  console.log(error instanceof RangeError);\n}\n\nwriter.fail();\nawait pending.catch(() => {});\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\n```console\nRangeError\ntrue\n```\n\nAs per [§7.2.2, `Writer.write()`, step 7.3](https://stream-iter.jasnell.me/#writer-write)\n> If \"strict\": if the pending writes queue is at capacity, return [a promise rejected with](https://webidl.spec.whatwg.org/#a-promise-rejected-with) a [RangeError](https://webidl.spec.whatwg.org/#exceptiondef-rangeerror).\n\n### What do you see instead?\n\n```console\nTypeError\nfalse\n```\n\n### Additional information\n\n_No response_","author":{"url":"https://github.com/trivikr","@type":"Person","name":"trivikr"},"datePublished":"2026-07-11T07:07:33Z","url":"https://github.com/nodejs/node/issues/64419"}