CodeSampleX

Sample

happy-dom 20.11.2: Prove that inline script execution in happy-dom depends on explicit JavaScript evaluation opt-in and is disabled by default.

Verified sample for npm happy-dom 20.11.2: Prove that inline script execution in happy-dom depends on explicit JavaScript evaluation opt-in and is disabled…

sha256:930977ea5401f145841532e344ef71bed6ed96079f8ff6f685626c41d25cb31e

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
Prove that inline script execution in happy-dom depends on explicit JavaScript evaluation opt-in and is disabled by default.
Packages
Symbols
  • Window
Environment
node
Created
2026-08-17T03:17:25Z

Contract

  1. In happy-dom 20.11.2, constructing `Window` without `settings.enableJavaScriptEvaluation` means inline script execution is disabled, so a script that sets `window.__ran = true` leaves `window.__ran` undefined.
  2. assert.strictEqual(runWindowEvaluation({ enableJavaScriptEvaluation: true }), true)
  3. assert.strictEqual(runWindowEvaluation({ enableJavaScriptEvaluation: false }), undefined)

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed