Perplexity Computer's fallback strategy: plain fetch first, JS rendering second
gaganghotra_ · x · 2026-09-18
A first-hand observation of how Perplexity Computer (the agentic browser) handles dynamic web pages, revealing its multi-level fallback scraping strategy:
- First it tries a simple fetch with no JS rendering
- If that fails, it fetches again — this time attempting to render JavaScript
The author shares the agent's actual reasoning log: "The dinner page didn't return the item list — it's likely rendered dynamically. Let me try the lunch menu and drinks pages, and also try the raw HTML for dinner."
Useful for agent/scraper builders: the agent doesn't one-shot it, it diagnoses failure reasons and retries with different tactics, much like a human would.
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