I’m trying to scrape a Vue.js single-page application. My extraction keeps returning empty arrays. I added a 5-second wait, which works sometimes, but it’s slow and still fails if their API is lagging.
How do I reliably wait for the page to actually finish rendering the data?
Hardcoded waits are the enemy of reliable automation! Waiting for “network idle” isn’t always enough either, because React/Vue might still be processing the DOM updates after the network request finishes.
Our analyzer handles this by waiting for true DOM stability. We inject a MutationObserver into the page that watches document.body for any child list or attribute changes. The engine will pause execution until there has been exactly 1 full second of zero DOM mutations (with a hard timeout fallback just in case). This guarantees that the SPA has completely finished rendering its components before the extraction logic fires.