vite-plugin-node + NestJS GraphQL subscriptions repro

Repro Steps

1. npm install
2. npm run start:dev
3. Go to the GraphQL playground at http://localhost:5173/graphql in your browser.
4. Paste in the TestQuery from OrgResolver.ts. It returns data as expected.
5. Paste in the TestSubscription from OrgResolver.ts. It produces the error "Could not connect to websocket endpoint ws://localhost:5173/graphql. Please check if the endpoint url is correct."

Workaround Steps

Instead of start:dev, run npm run start:prod. Repeat the above steps and the TestSubscription will show the message "Listening..." in the Playground.