No sourcemaps for Selenium/headless chrome client tests?

Hi, I could really use some assistance to get sourcemaps working for client-side callstacks in headless chrome.

My command looks something like this:

`>` `TEST_BROWSER_DRIVER=chrome TEST_CHROME_ARGS='start-maximized enable-automation --headless --no-sandbox --disable-dev-shm-usage --disable-browser-side-navigation --disable-gpu --ignore-certificate-errors' TEST_CLIENT=1 TEST_SERVER=1 ROOT_URL=https://www.dev-test.com:3000 SERVER_NODE_OPTIONS='--trace-uncaught --trace-warnings' meteor test --port 3006 --extra-packages xolvio:cleaner meteortesting:mocha@3.2.0 meteortesting:browser-tests@1.7.0 meteortesting:mocha-core@8.2.0 --driver-package meteortesting:mocha --full-app --settings test.json`

(3000 is the SSL port and 3006 is for HTTP; requests are proxied and work fine)

Anything obviously missing here? Am I barking up the right tree?

Thanks.

Start by reproducing the supplied `meteor test` command with the listed Chrome and browser-test settings. Inspect how client-side failures and callstacks are handled in the browser test package; done means headless Chrome reports usable source locations for client test failures.

Written by the indexing model from the issue text.