I’m having an issue where my Puppeteer script navigates to a webpage and considers it loaded, but the content doesn’t actually render properly. The page shows up as if it loaded successfully, but when I try to interact with elements that should be there (like data tables), they’re missing or not visible.
The main problem happens when I navigate to a section that should display stock tables. Instead of seeing the expected table data, the page appears empty even though Puppeteer thinks everything loaded fine. Sometimes the browser even becomes unresponsive during this process.
Has anyone experienced similar behavior where Puppeteer reports successful page loading but the actual content fails to appear? I’m not getting any error messages, which makes it harder to debug. What could be causing this disconnect between Puppeteer’s load status and the actual page rendering?
Had this exact problem with React trading dashboards. The issue is usually client-side rendering - the HTML loads but JavaScript hasn’t populated the DOM yet. Don’t rely on standard load events. Use page.waitForResponse() to wait for the specific API endpoints feeding your stock tables. Check network requests in dev tools to find which endpoints have your data, then wait for those responses. Another approach that worked: page.waitForFunction() with a custom condition checking if your table actually has rows with data, not just empty DOM elements. If the browser’s becoming unresponsive, the page might be making multiple concurrent requests or running heavy calculations. Give it time with network idle states - helps a ton.
Classic dynamic content loading issue. The DOM loads but the actual table data comes in later via AJAX or lazy loading - Puppeteer thinks it’s done but the content isn’t there yet. I hit this exact problem scraping financial sites last year. Ditch the default load event and use explicit waits instead. Try page.waitForSelector() for the actual table elements you need. If there are multiple API calls filling the tables, use page.waitForLoadState('networkidle') to wait until network activity settles. Also check if the site needs user interaction first - some pages won’t load tables until you scroll down or click something. The browser freezing up sounds like heavy JavaScript running in the background that needs more time to finish.
sounds like a js-heavy page still loading aftr the DOM loads. try await page.waitForTimeout(3000) b4 interacting with elems, or use page.waitForFunction() for specific conditions. also check lazy loading - some stock sites won’t show tables until you scroll down, so maybe do page.evaluate(() => window.scrollTo(0, document.body.scrollHeight)) first.