Inheritance makes shadow roots observable
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topic: shadow
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Description
Violating shadow root encapsulation is a bad problem and we should fix this, not just for UA shadow roots.
See https://github.com/whatwg/html/issues/3748 for more context.
cc @emilio @rniwa @smaug----
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 by reading the linked WHATWG HTML issue 3748 and the discussion here to understand how inheritance exposes shadow roots. No file, test, or implementation entry point is named in this issue. Done means defining and implementing behavior that preserves shadow-root encapsulation beyond UA shadow roots, with coverage identified during the investigation.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- css
- Domain
- frontend, web-dev
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100