Sample
undici 7.29.0: Retry fetch requests with bodies safely and avoid cross-realm TypeError between undici and global fetch
Verified sample for npm undici 7.29.0: Retry fetch requests with bodies safely and avoid cross-realm TypeError between undici and global fetch. The contract…
sha256:58c13cc15f12e5f7e9c8dab8a50ff21446e25ffae7a78a5b505a95eae5b06e5e
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
node linux x64 node node npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-15 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Retry fetch requests with bodies safely and avoid cross-realm TypeError between undici and global fetch
- Packages
- Symbols
-
- fetch
- Request
- Response
- Headers
- Request.clone
- Request.bodyUsed
- Environment
- node
- Created
- 2026-08-15T15:14:06Z
Contract
- assert undici Request and globalThis Request have distinct prototypes and fail cross-realm instanceof
- assert passing globalThis.Request to undici.fetch or undici.Request to globalThis.fetch throws TypeError ERR_INVALID_URL
- assert fetch(req) consumes req.body marking req.bodyUsed as true
- assert retrying fetch(req) or calling req.clone() after fetch throws TypeError
- assert cloning Request before fetch allows successful retry with identical body
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs