V2: Pass EnVars into chromium session

[phil-d-wilson]

No description provided.

[piotr-cz]

As far as I know there are very limited options:

• Append variables to LAUNCH_URL query
• Use launcher like Playwright, Puppeteer or Electron and set global variables
• Develop custom Chromium pre-installed Extension that sets global variables

[phil-d-wilson]

Hi @piotr-cz

Thanks for the info. I'm about to push a PR which will sort this, though. I can pass the enVars from the main container into the startx.sh file by whitelisting them in the su command.

Thanks

[piotr-cz]

Can I ask how are you going to pass them to Chromium?

[phil-d-wilson]

The majority of them get turned into Chromium flags:

https://github.com/balenablocks/browser/blob/9e8b3b17bb358a19c65be9d44d36b940a3bed31c/src/server.js#L110

@piotr-cz

[piotr-cz]

Ah, I totally missed development on the V2 branch and the fact that it uses chrome-launcher.

Actually I'm looking for a way to pass data (environment variables) to global window context in which LAUNCH_URL is executed.