[1] Headless Chromium (2017-05-01 23:13:20 +09:00) https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

[2] Getting Started with Headless Chrome  |  Web  |  Google Developers (2017-05-01 22:40:40 +09:00) https://developers.google.com/web/updates/2017/04/headless-chrome

[3] Automated testing with Headless Chrome  |  Web  |  Google Developers (2017-06-15 23:35:00 +09:00) https://developers.google.com/web/updates/2017/06/headless-karma-mocha-chai

[4] Chrome’s Headless mode gets an upgrade: introducing `--headless=new` - Chrome Developers, 1980-01-01T00:00:01.000Z, 2023-08-21T03:26:50.502Z https://developer.chrome.com/articles/new-headless/