Fix hydration recovery crashes

[tannerlinsley]

What changed

• update @tanstack/redact from 0.0.18 to 0.0.19
• keep the root theme class read safe during document recovery

Why

Browser extensions such as Dark Reader can mutate styles before hydration. Redact 0.0.19 tolerates those mutations and repairs document-shell mismatches in place instead of temporarily removing document.documentElement.

Validation

• pnpm test — 24 passed, 1 skipped
• commit hook reran formatting, TypeScript, lint, and unit tests

Summary by CodeRabbit

• Bug Fixes

  • Improved theme class handling to prevent errors when the page document is unavailable.
  • Ensured consistent HTML class behavior across client-side and server-side rendering environments.

• Chores

  • Updated an internal development tool to a newer version.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: cca2b235-5d46-4177-9095-e00ed9466007

📥 Commits

Reviewing files that changed from the base of the PR and between ba2c61e and bad6929.

⛔ Files ignored due to path filters (1)

• pnpm-lock.yaml is excluded by !**/pnpm-lock.yaml

📒 Files selected for processing (2)

• package.json
• src/components/ThemeProvider.tsx

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📝 Walkthrough

Walkthrough

The PR makes client-side HTML class lookup null-safe in ThemeProvider.tsx and updates the @tanstack/redact development dependency version in package.json.

Changes

ThemeProvider DOM safety

Layer / File(s)	Summary
Null-safe HTML class lookup src/components/ThemeProvider.tsx	getHtmlClass uses optional chaining and returns an empty string when document.documentElement is unavailable.

Development dependency update

Layer / File(s)	Summary
Redact version constraint package.json	The @tanstack/redact development dependency is updated from ^0.0.18 to ^0.0.19.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• TanStack/tanstack.com#1060: Also adds guards around document.documentElement access in ThemeProvider.tsx.

Suggested reviewers: schiller-manuel

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: fixing crashes during hydration recovery.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch taren/update-redact-0.0.19

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	tanstack-com	bad6929	Commit Preview URL Branch Preview URL	Jul 25 2026, 12:18 AM