Potential fix for code scanning alert no. 7: Clear text transmission of sensitive cookie

[Code-lab-web]

Potential fix for https://github.com/Code-lab-web/project-final/security/code-scanning/7

In general, to fix clear-text transmission of sensitive cookies in an Express app using express-session, you must configure the session middleware to mark its cookie as secure (only sent over HTTPS) and, ideally, also httpOnly and sameSite to mitigate other attacks. This is done using the cookie option in the session configuration object.

For this specific snippet in frontend/components/pages/App.js, update the app.use(session({ ... })) call around line 22 to include a cookie property specifying secure attributes. To avoid changing existing functionality while still enforcing security, add:

cookie: {
  secure: true,
  httpOnly: true,
  sameSite: 'lax'
}

This leaves the existing secret, resave, saveUninitialized, and store settings untouched. Because secure: true requires HTTPS, in real deployments you might conditionally set it based on environment, but within the constraints of this snippet and the CodeQL finding, explicitly enabling it is the clearest fix. No new imports or additional methods are needed; we only adjust the options object passed to session().

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