Sample
puppeteer 25.7.0: Handle Puppeteer's current Uint8Array screenshot result safely in Node.js, or request base64 from Puppeteer explicitly.
Verified sample for npm puppeteer 25.7.0: Handle Puppeteer's current Uint8Array screenshot result safely in Node.js, or request base64 from Puppeteer…
sha256:76a3d81b76db62e83d80c16f85e5325d5c0fc7fdaee250313f250abe4832154f
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 typescript 5.9 npm
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-17 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:PASS · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
Case
HOW- Goal
- Handle Puppeteer's current Uint8Array screenshot result safely in Node.js, or request base64 from Puppeteer explicitly.
- Packages
- Symbols
-
- Page.screenshot
- Buffer.from
- Uint8Array.toString
- Environment
- node
- Created
- 2026-08-17T03:53:06Z
Contract
- TypeScript 5.9 accepts Puppeteer 25.7.0 page.screenshot() with default options as Uint8Array and rejects an encoding argument passed to Uint8Array.toString.
- TypeScript accepts page.screenshot({encoding: 'base64'}) as string.
- For binary screenshot bytes in Node.js, Uint8Array.toString('base64') returns comma-separated decimal bytes while Buffer.from(bytes).toString('base64') returns base64.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
- test/types.ts
- tsconfig.json