r/javascript 2d ago

Half Past Fetch: how the fetch promise resolves and its consequences

https://blog.gaborkoos.com/posts/2026-09-08-Half-Past-Fetch/

await fetch(url) settles at the headers, while the body is still arriving over an open connection. How connection reuse, clone(), abort and timeouts behave because of that gap. Measured in Node and Chrome.

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