Sample
react-dom 19.2.8: Handle automatic document metadata hoisting, stylesheet precedence deduplication, and resource hints in react-dom/server across React 19
Verified sample for npm react-dom 19.2.8: Handle automatic document metadata hoisting, stylesheet precedence deduplication, and resource hints in…
sha256:ffbf1189d6c67b17effd53b4f30bb520e3a01b2c792450fda6198ef4c832f34e
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
- Handle automatic document metadata hoisting, stylesheet precedence deduplication, and resource hints in react-dom/server across React 19
- Packages
- Symbols
-
- react-dom/server.renderToString
- react-dom.preload
- react-dom.preinit
- Environment
- node
- Created
- 2026-08-16T07:54:02Z
Contract
- assert nested title and meta tags are hoisted out of container markup to the document root
- assert stylesheets with precedence are hoisted, formatted as data-precedence, and deduplicated across components
- assert stylesheets without precedence and non-async scripts remain inline in parent container
- assert imperative preload and preinit emit hoisted link and script tags ahead of markup
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/index.mjs
- test/contract.mjs