CodeSampleX

Sample

puppeteer 24.2.1: In puppeteer 24.2.1 compared to 24.2.0, sending a protocol command on a CDPSession whose underlying CDP connection is closed immediately rejects with TargetCloseError.

Verified sample for npm puppeteer 24.2.1: In puppeteer 24.2.1 compared to 24.2.0, sending a protocol command on a CDPSession whose underlying CDP connection…

sha256:dc1b1b112e2416c0ba3d543669e6d586c6363367e1bbc4fc411f7e8705f60071

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
In puppeteer 24.2.1 compared to 24.2.0, sending a protocol command on a CDPSession whose underlying CDP connection is closed immediately rejects with TargetCloseError.
Packages
Symbols
  • puppeteer.CDPSession
  • CDPSession.send
Environment
node
Created
2026-08-17T02:00:01Z

Contract

  1. In puppeteer 24.2.1 compared to 24.2.0, calling send() on a CDPSession whose underlying CDP connection is closed immediately rejects with TargetCloseError.
  2. In puppeteer 24.2.1, network request interception CDP errors containing Unsafe header are re-thrown by handleError rather than swallowed.

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

csx-seed