"process is not defined", when using Typescript (MRE included) about parcel HOT 2 OPEN

quick note: I've been able to workaround this issue in my TS-based project (https://github.com/npmgraph/npmgraph) by creating a small JS module that just exports the necessary env-var, and importing that into my TS code:

// file: "bugsnag_key.js"
const BUGSNAG_KEY = process.env.BUGSNAG_KEY;
export default BUGSNAG_KEY;

I should also note that this code was working fine until I updated a slew of the project's dependencies. 'Not sure what changed that caused this to break.

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Removing the declare let process type declaration from index.ts also appears to fix the problem. I.e., so index.ts looks like this:

window.onload = function () {
  // @ts-ignore (so TSC doesn't complain.  :-( )
  document.body.innerHTML = process.env.BUGSNAG_KEY;
}

I'm going to leave this open, as being able to properly declare the shape of process seems like a reasonable expectation.

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