Sample
lodash 4.17.21: CommonJS dependencies require both ssr.noExternal and ssr.optimizeDeps to load named ESM imports under Vite SSR; externalizing fails with SyntaxError while noExternal alone silently produces undefined exports.
Verified sample for npm lodash 4.17.21: CommonJS dependencies require both ssr.noExternal and ssr.optimizeDeps to load named ESM imports under Vite SSR…
sha256:3d6913c88e87048b4b55cebf64b6e0bd0e5c2fa4e748e8f754ff20cd2baf86bd
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 |
2026-08-15 |
| 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
- CommonJS dependencies require both ssr.noExternal and ssr.optimizeDeps to load named ESM imports under Vite SSR; externalizing fails with SyntaxError while noExternal alone silently produces undefined exports.
- Packages
- Symbols
-
- createServer
- ssrLoadModule
- ssr.noExternal
- optimizeDeps
- ssr.optimizeDeps
- Environment
- node
- Created
- 2026-08-15T14:40:23Z
Contract
- assert default SSR externalization rejects named imports from CommonJS modules with SyntaxError
- assert client-side optimizeDeps does not affect SSR module externalization
- assert ssr.optimizeDeps without ssr.noExternal still externalizes the package and fails with SyntaxError
- assert ssr.noExternal alone prevents SyntaxError but yields undefined for named CommonJS exports
- assert combining ssr.noExternal and ssr.optimizeDeps correctly synthesizes named and default exports
Files
- NOTES.md
- csx.json
- fixtures/default-import.js
- fixtures/named-import.js
- package-lock.json
- package.json
- test/contract.mjs