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Title: stream: improve handling of falsy errors in stream/iter by jasnell · Pull Request #65864 · nodejs/node · GitHub

Open Graph Title: stream: improve handling of falsy errors in stream/iter by jasnell · Pull Request #65864 · nodejs/node

X Title: stream: improve handling of falsy errors in stream/iter by jasnell · Pull Request #65864 · nodejs/node

Description: Preserves arbitrary failure and cancellation reasons, including falsy values such as undefined, null, false, 0, and ''. Distinguishes omitted cancellation reasons from explicitly passed undefined. Removes internal coercion of non-Error reasons. Wraps non-Error values only at classic stream boundaries, retaining the original value in error.reason. Improves pending write/end cleanup for file, QUIC, broadcast, push, share, and classic stream writers. Ensures terminal writer errors take precedence over per-operation abort signals. Adds extensive reason-propagation and lifecycle tests. Updates stream/iter documentation accordingly.

Open Graph Description: Preserves arbitrary failure and cancellation reasons, including falsy values such as undefined, null, false, 0, and ''. Distinguishes omitted cancellation reasons from explicitly passed und...

X Description: Preserves arbitrary failure and cancellation reasons, including falsy values such as undefined, null, false, 0, and ''. Distinguishes omitted cancellation reasons from explicitly pa...

Opengraph URL: https://github.com/nodejs/node/pull/65864

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fdbfc17 stream: improve handling of falsy errors in stream/iter jasnell Aug 30, 2026 https://github.com/nodejs/node/pull/65864/commits/fdbfc173bf615dd5c6d9781382aaf8270f8694eb
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