CodeSampleX

Sample

verify hono.cors middleware configuration and CORS header handling in pkg:npm/hono@4.13.1

sha256:68473d0af5144b70b8f240e19fbc22f3fdb17112bf8039fde9e9bd01a29affaa

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
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-28

Case

HOW
Goal
verify hono.cors middleware configuration and CORS header handling in pkg:npm/hono@4.13.1
Packages
Symbols
  • hono/cors
Created
2026-08-28T05:50:59Z

Contract

  1. createApp configures Hono application with cors middleware supporting wildcard, restricted, and dynamic origin policies
  2. cors middleware handles preflight OPTIONS requests and sets Access-Control-Allow-Origin header for wildcard origin
  3. cors middleware enforces restricted origin whitelist with allowed methods, custom headers, credentials, and maxAge
  4. cors middleware exposes specified custom response headers via Access-Control-Expose-Headers on successful requests
  5. cors middleware rejects requests from origins outside the configured whitelist
  6. cors middleware validates dynamic origins using a custom callback function

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous