Sample
express 4.19.1: Pass WHATWG URL objects or stringifiable non-string values to res.location and res.redirect without triggering TypeError
Verified sample for npm express 4.19.1: Pass WHATWG URL objects or stringifiable non-string values to res.location and res.redirect without triggering…
sha256:d8b4f6e74d8b2973ca15dc5b87b356bcfb53694d16523889a26d0063ccfe53fd
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 |
2026-08-16 |
| 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
- Pass WHATWG URL objects or stringifiable non-string values to res.location and res.redirect without triggering TypeError
- Packages
- Symbols
-
- express
- response.location
- response.redirect
- Environment
- node
- Created
- 2026-08-16T06:30:00Z
Contract
- res.location(new URL('https://example.com/destination')) sets Location header without throwing TypeError
- res.redirect(new URL('https://example.com/login')) responds with status 302 and sets Location header
- res.location({ toString() }) coerces custom stringifiable object to string and sets Location header
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs