Custom PageContext returns `undefined` for all custom values

[alycda]

Description

Hi, I have followed the guides at https://vike.dev/pageContext#custom but the values I pass are ALWAYS undefined, server-side and client-side.

...
import cookieParser from 'cookie-parser'
...

  const app = express()

  app.use(compression())
  app.use(cookieParser())

...

    const pageContextInit = {
      urlOriginal: req.originalUrl,

      // pageContext.headers – e.g. make cookies available over pageContext.headers.cookies
      headers: req.headers,

      cookies: req.cookies,
    }

// +config.ts

export default {
  passToClient: [
    'headers',
    'cookies',
  ]
}

terminal console output for headers and cookies is undefined, as well as the console output in Browser DevTools. I have also tried adding a hardcoded string value and that also returns undefined.

[phonzammi]

Hi @alycda
Can you provide a minimal repro, please?

[alycda]

Hi, I found the issue. This project is within an NX monorepo, so the command I used to run was pnpm nx serve apps/env-switcher which uses @nx/vite:dev-server. But running with pnpm dev seems to work (I assume thanks to ts-node).

[phonzammi]

By default, your server code isn't processed by Vite: issue#562

[alycda]

By default, your server code isn't processed by Vite: issue#562

Yes, I read that comment at the top of the file and I did restart whenever changes were made but the custom page context items I added were always undefined, including a simple string.

[phonzammi]

I'm sorry. The point is when you run the dev server, what script does it execute, if it's vite or vite dev then it doesn't run your express server.

[alycda]

ah, I see. that file (index.ts) wasn't automagically executed by @nx/vite:dev-server so the values were undefined (and I correctly got errors regarding headers and cookies not being passed to client without changes to +config.ts)