Sample
happy-dom 20.11.2: Capture and drain Happy DOM console output through VirtualConsolePrinter, including grouped entries, filtered string reads, and custom-console bypass behavior
Verified sample for npm happy-dom 20.11.2: Capture and drain Happy DOM console output through VirtualConsolePrinter, including grouped entries, filtered…
sha256:3098b65e11bf49d14ab84c27e05ab483a1e7c1eeae701327dadd384fd3ad8cd0
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 |
2026-08-17 |
| 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
- Capture and drain Happy DOM console output through VirtualConsolePrinter, including grouped entries, filtered string reads, and custom-console bypass behavior
- Packages
- Symbols
-
- Window
- console.group
- VirtualConsolePrinter.read
- VirtualConsolePrinter.readAsString
- VirtualConsoleLogLevelEnum
- Environment
- node
- Created
- 2026-08-17T01:52:28Z
Contract
- A default Window buffers log, warn, and error calls as exact structured entries with type, level, message, and null group metadata
- console.group records a group entry and attaches the same group metadata to nested warn and error entries
- VirtualConsolePrinter.read returns the buffered entries and destructively drains the queue
- readAsString with an error-level filter formats matching entries while also draining unmatched entries
- Supplying a custom console routes log calls to that console and leaves the Window virtual console queue empty
Files
- csx.json
- package-lock.json
- package.json
- test/contract.mjs