CodeSampleX

Sample

happy-dom 20.11.2: Initialize Happy DOM with options and populate markup via document.write or window.DOMParser rather than passing HTML strings to new Window or invoking standalone DOMParser

Verified sample for npm happy-dom 20.11.2: Initialize Happy DOM with options and populate markup via document.write or window.DOMParser rather than passing…

sha256:53aeae586fae7f02414a22588d189556a779055a4c627064ec6114aee07367ef

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
Initialize Happy DOM with options and populate markup via document.write or window.DOMParser rather than passing HTML strings to new Window or invoking standalone DOMParser
Packages
Symbols
  • Window
  • DOMParser
Environment
node
Created
2026-08-16T16:45:38Z

Contract

  1. new Window(html) ignores string arguments because the constructor expects an options object, leaving document.body.innerHTML empty and getElementById returning null.
  2. new DOMParser() imported standalone from happy-dom throws TypeError on parseFromString due to missing Window context binding.
  3. window.document.write(html) on an existing Window instance parses the HTML string into the active document.
  4. new window.DOMParser() bound to a Window instance successfully parses HTML into a new HTMLDocument.

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed