Introduction to Headless Browser Testing
Yomi
1974

Thanks for the article, Yomi.
I just wanted to add that there’s one more headless testing option I know, TestCafe: https://github.com/DevExpress/testcafe (free, opensource, Node.js based tool, doesn’t use Selenium).
It can do headless testing in Chrome and it’s coming soon for Firefox v56 (https://developer.mozilla.org/en-US/Firefox/Headless_mode)

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