martmull
dcccdbd148
# Context
Part of a CI flakiness sweep. Integration shards are intermittently
killed by an uncaught socket error that poisons a whole spec file (e.g.
`sync-failure-lifecycle.integration-spec.ts`, 4 tests, on unrelated PR
branches — example run 28940565117, shard 8):
```
Error: read EINVAL
at MockHttpSocket.emit (@mswjs/interceptors/.../MockHttpSocket.ts:161)
```
# Root cause
The integration setup routes **all** HTTP (including
supertest/node-fetch calls to the in-process app) through msw's
ClientRequest interceptor, with localhost passthrough. msw `2.12.7` pins
`@mswjs/interceptors` `0.40.0`, where:
- `passthrough()` aliases the real socket's libuv `_handle` onto the
mock socket (two owners of one handle) and forwards the real socket's
`error` events into `MockHttpSocket.emit`,
- `destroy()` never destroys the passthrough socket, so it stays
orphaned with its error-forwarding listener attached.
When the server side closes such a connection later, a read on the stale
shared handle yields `EINVAL`, forwarded into `emit()` with no request
(and no error listener) attached → uncaught exception → jest kills the
in-flight file. This is upstream
[mswjs/interceptors#753](https://github.com/mswjs/interceptors/issues/753);
the stack frames match line-for-line.
# Fix
Bump `msw` to **exactly `2.12.14`** in `twenty-server` and
`twenty-front` (shared lock entry). msw 2.12.9+ requires interceptors
`^0.41.2` → resolves 0.41.9, which ships
[interceptors#755](https://github.com/mswjs/interceptors/pull/755):
passthrough sockets get their listeners removed and are destroyed on
close, severing the exact error path above.
Notes from adversarial review:
- Pinned exact (`2.12.14`, not `^`) because the caret would resolve to
2.15.0 today — a bigger jump than reviewed.
- Compatibility checked: no deep imports of msw/interceptors anywhere;
interceptors 0.41.x externals already covered by
`transformIgnorePatterns`; `msw-storybook-addon@2.0.6` peer range
satisfied; `mockServiceWorker.js` integrity checksum unchanged between
2.12.7 and 2.12.14; 0.41.7+ adds Node 24 compatibility (repo targets
Node 24).
- Residual risk disclosed: #753 is still open upstream and the `_handle`
aliasing remains in 0.41.9 — this removes the observed orphaned-socket
path, but keep an eye out for recurrence.
Dependency-only change: 2 package.json lines + lockfile.
---
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