Sample
puppeteer 24.4.0: Distinguishing puppeteer headless: true vs headless: 'shell' flags and handling container sandbox requirements
Verified sample for npm puppeteer 24.4.0: Distinguishing puppeteer headless: true vs headless: 'shell' flags and handling container sandbox requirements. The…
sha256:5bb41f68ae932e5e11cd15b479207357119670db2d0e497764e5c011030d0cc0
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
- Distinguishing puppeteer headless: true vs headless: 'shell' flags and handling container sandbox requirements
- Packages
- Symbols
-
- puppeteer.defaultArgs
- puppeteer.executablePath
- Environment
- node
- Created
- 2026-08-15T10:55:15Z
Contract
- assert puppeteer.defaultArgs({ headless: true }) includes --headless=new and excludes --headless
- assert puppeteer.defaultArgs({ headless: 'shell' }) includes --headless and excludes --headless=new
- assert puppeteer.defaultArgs({ headless: 'old' }) produces --headless=new instead of legacy --headless in modern Puppeteer
- assert puppeteer.defaultArgs() does not include --no-sandbox or --disable-setuid-sandbox by default
- assert puppeteer.executablePath('chrome-headless-shell') throws because channel expects ChromeReleaseChannel, not binary name
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs