Secrets support

Is your feature request related to a problem? Please describe.

I’d like to be able to specify API secrets in a StackBlitz project without sharing them publicly. I’m fine with the code being shared publicly (because the repository itself is open-source), but I don’t want to have certain environment variables (e.g. API keys, secret tokens) shared publicly.

Describe the solution you’d like

I’d like to be able to specify secrets in a project’s settings (that are only accessible via process.env when I’m logged in). Essentially, I just want StackBlitz to have CodeSandbox’s existing secrets feature.

Describe alternatives you’ve considered

I could (if it’s possible) create a private StackBlitz project and then just add the environment variables in a .env.local file.

Additional context

I’m trying to get Tutorbook working as a StackBlitz project so that I can edit on the go (via any web browser) wherever I am.

[mwisnicki]

Example code: https://stackblitz.com/edit/node-secrets-example-localstorage-v2?file=localStorageSecrets.js

[mwisnicki]

There’s an ugly workaround for frontend code - put them into localstorage of preview frame.