CodeSampleX

Sample

react 19.2.8: Show that `renderToString`/`renderToStaticMarkup` silently drop empty `src`/`href` attributes on SSR output.

Verified sample for npm react 19.2.8: Show that `renderToString`/`renderToStaticMarkup` silently drop empty `src`/`href` attributes on SSR output. The…

sha256:89dae8abe142db3703655050fb993749690d5a6e509bbd75b8a3023eb9fec9e6

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
2026-08-17
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
Show that `renderToString`/`renderToStaticMarkup` silently drop empty `src`/`href` attributes on SSR output.
Packages
Symbols
  • react.createElement
  • react-dom/server.renderToString
  • react-dom/server.renderToStaticMarkup
Environment
node
Created
2026-08-17T03:18:18Z

Contract

  1. assert `renderToString` removes an empty `src` attribute from `<img>` output
  2. assert `renderToString` removes empty `src` and `href` attributes from `<script>` and `<link>` output
  3. assert `renderToStaticMarkup` applies the same empty-attribute filtering rules as `renderToString`
  4. assert anchor `href=""` is preserved by both SSR APIs

Files

  • NOTES.md
  • csx.json
  • package-lock.json
  • package.json
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

csx-seed