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"cookies is not iterable" error thrown when trying to iterate over a fetch response that contains a Set-Cookie header #46704
Description
Version
18.14.1
Platform
Darwin dtinth-m1.local 22.1.0 Darwin Kernel Version 22.1.0: Sun Oct 9 20:14:30 PDT 2022; root:xnu-8792.41.9~2/RELEASE_ARM64_T8103 arm64
Subsystem
undici
What steps will reproduce the bug?
See: nodejs/undici#1935
How often does it reproduce? Is there a required condition?
See: nodejs/undici#1935
See: sveltejs/kit#9091
What is the expected behavior?
No error
What do you see instead?
error cookies is not iterable
File:
/Users/dtinth/Projects/contentsgarten/creatorsgarten/src/pages/api/contentsgarten/[action].ts:82:47
Code:
81 | const response = await fetch(backendUrl, {
> 82 | method: request.method,
| ^
83 | headers,
84 | body: request.body,
85 | })
Stacktrace:
TypeError: cookies is not iterable
at get [headers map sorted] (node:internal/deps/undici/undici:1844:34)
at node:internal/deps/undici/undici:1865:43
at Headers Iterator.next (node:internal/deps/undici/undici:1108:26)
at Function.from (<anonymous>)
Additional information
The issue nodejs/undici#1935 is already closed because there was a merged PR that fixes the issue nodejs/undici#1936
However, a Node.js version with the fix has not been released yet… So the issue is shifted to Node.js side to release a version of undici with the fix (or rollback the version of undici that adds the regression).
Activity
mcollina commentedon Feb 18, 2023
Thanks for reporting. A fix is incoming.