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Use one Puppeteer browser and create a browser context per user or test for fast, lightweight isolation. Contexts keep cookies and storage separate while sharing the Chromium process.
Puppeteer request interception lets you block images, stylesheets, and fonts before they download. This blog shows a practical pattern for selective loading, with a script and verification steps for fidelity vs speed.
A practical guide to eliminating race conditions in Puppeteer headless navigation by chaining networkidle0 with explicit waitForSelector visibility checks, including retry strategies and fallback patterns for flaky pages.
Stop relying on unstable CSS selectors. Learn how to use Puppeteer's network interception and waitForResponse to capture raw JSON data directly from APIs for more robust automation.
puppeteer
nodejs
javascript