Re: [whatwg/fetch] Investigate usage of "append" for headers (Issue #1850)

jakearchibald left a comment (whatwg/fetch#1850)

@valadaptive thanks for gathering this all together!

> I believe they should be changed back to `set` along with `Accept-Encoding`.

IMO there should also be an assert beforehand that the header doesn't exist, because it means that browsers are doing something that isn't (currently) specified anywhere.

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Received on Tuesday, 19 August 2025 08:20:10 UTC