Is it possible to parameterize the embedded sandbox somehow?

[aboodman]

Hello, I'd like to pass a value to the embedded sandbox somehow. I'm using CSB as part of the documentation for my product, and the product requires a license key. If the user is logged in, I would like to pass this license key into the CSB somehow and then use it literally in the source code. Something like:

<iframe src={csburl + `&define-LICENSE_KEY=${userLicenseKey}`}/>

Then, inside the sandbox, I could have code like:

console.log("got license key from define", LICENSE_KEY);

Is anything like this possible?