npm run grunt you might see an error due to the puppeeter package. An unhandled promise chain which can cause troubles, maybe differents according to your nodejs version.Welcome! 馃憢 Thanks for opening your first issue here! And to ensure the community is able to respond to your issue, be sure to follow the issue template if you haven't already.
The pupeteer version used in this repo is pretty only indeed. Will need some time to test upgrading to the latest version doesn't break anything though.
If this might help anyone else:
I had the same "Object reference chain is too long" error even though puppeteer is the latest (v5.5.0).
And after switching my Node.js to the LTS version (v15.5.1 -> v14.15.4, Windows) the test task completes successfully.
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The pupeteer version used in this repo is pretty only indeed. Will need some time to test upgrading to the latest version doesn't break anything though.