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Fix Node.contains ancestor traversal - #688

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olavoasantos wants to merge 1 commit into
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fix-node-contains
Open

Fix Node.contains ancestor traversal#688
olavoasantos wants to merge 1 commit into
mainfrom
fix-node-contains

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@olavoasantos

@olavoasantos olavoasantos commented Sep 2, 2026

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Summary

  • Fix Node.contains ancestor traversal.
  • Add focused regression coverage for the corrected behavior.

Stack

  • Stack: Independent quick wins (#702), layer 1 of 4
  • Base: main
  • This is the bottom of its stack.

Coverage includes the explicit unrelated detached-node case from the issue acceptance criteria.

Validation

Fresh GitHub CI on restacked head 3c57e5b passes:

  • lint;
  • type-check and build;
  • unit tests with coverage;
  • bundle-size checks;
  • Playwright end-to-end tests;
  • the classified Web Platform Test suite.

@olavoasantos
olavoasantos changed the base branch from parse-closing-tags-and-svg to main September 3, 2026 15:30
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