Shadow DOM: implement `Node.contains()` function to support shadow roots and slots
Open
Nobody has claimed this yet.
- Dominant language
- TypeScript
- Stars
- 165
- Forks
- 42
- Avg merge
- 1d 11h
- Merged PRs (30d)
- 9
Description
Node.contains() does not handle shadow roots. Implement an "elementContains()" function to handle shadow roots.
We need to validate the implementation and decide how to best include it in Tabster.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked implementation in shadow-dom/src/pierce-dom/elementContains/index.ts and inspect how Tabster currently handles Node.contains(), shadow roots, and slots. Validate the behavior with the relevant existing tests, then determine the appropriate integration point and confirm that containment works across the stated cases.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- accessibility, frontend
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100