Rethinking Browser Automation: Unleashing the Power of Puppeteer and Playwright
summary
Demonstrates concrete techniques: use Puppeteer core plus Chrome launcher to avoid the 170–280 MB browser download, connect over Chrome DevTools Protocol to call performance.getMetrics and HeapProfiler, and cut a 76-line custom protocol script down to about 5 lines. Shows image/PDF screenshots, visual regression, accessibility via injected axe script, CPU/network throttling, and a memory-leak check with a 10% heap threshold. Runs headless Chromium from Google Cloud Functions and CI; all examples include code and measured outcomes.
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chapters (17)
- 0:00Browser automation intro
- 1:00Automate with Puppeteer & Playwright
- 3:06Headless Chrome capabilities
- 5:34Puppeteer vs Playwright
- 7:18DevTools recorder for flows
- 8:21Dark mode visual testing
- 9:03Performance benchmarking
- 10:29Accessibility testing
- 11:34Code coverage with Puppeteer
- 13:02DevTools Protocol basics
- 16:13Advanced DevTools Protocol
- 18:40Lightweight Puppeteer
- 21:46Live Puppeteer demo
- 23:34Visual regression & budgets
- 24:40Memory leaks with CDP
- 26:05Cloud automation
- 27:09Key takeaways
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