Handling Lazy-Loaded Content in Automated Screenshots

Short summary

A technical guide to capturing complete screenshots of lazy-loaded web pages with Puppeteer. Covers programmatic scrolling with delays, overriding native loading="lazy" attributes, brute-forcing data-src patterns, and capping scroll depth for infinite feeds. Each technique includes code examples and trade-offs around reliability versus brittleness.

• •Scroll the page programmatically before screenshotting to trigger IntersectionObserver-based lazy loaders
• •Override native loading="lazy" via evaluateOnNewDocument or force data-src into src for custom loaders
• •Cap scroll iterations for infinite feeds; wait 2s between scrolls for API responses

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