Metaculus / Metaculus/metaculus
Investigate server-side Node.js webstreams error
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@cemreinanc is already working on this.
Since Feb 10, 2026.
Medium Priority
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- Dominant language
- TypeScript
- Stars
- 113
- Forks
- 34
- Avg merge
- 16h 34m
- Merged PRs (30d)
- 30
Description
We're seeing a lot of server-side crashes in Node.js webstreams code - not in our application code directly.
Sentry: https://metaculus.sentry.io/issues/METACULUS-FRONTEND-1FZ (20,773 events since June)
The error is happening deep in Node.js internals:
TypeError: controller[kState].transformAlgorithm is not a function
at node:internal/webstreams/transformstream:568:16
This appears to be a Node.js or Next.js compatibility issue rather than a bug in our code. Need to investigate:
- Whether this is a known issue in Node v24.13.0
- If upgrading/downgrading Node or Next.js resolves it
- Whether other projects are seeing similar issues
0 users affected (server-side only), but high event volume.
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