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Scroll the page to trigger its infinite-loading behavior, wait for new content to appear, and repeat until a site-specific stopping condition is met. Then capture the rendered page with await page.screenshot({ path: 'page.png', fullPage: true }). The fullPage option captures the page’s current contents; it does not, by itself, guarantee that an infinite feed has loaded.
Why scrolling must happen before the screenshot
Puppeteer’s Page.screenshot() method accepts fullPage: true to request a screenshot of the full page. Its API documentation describes screenshot options such as fullPage and clip, but does not say that full-page capture will scroll through an infinite feed to trigger additional requests. See the Puppeteer screenshots guide, ScreenshotOptions reference, and Page.screenshot() reference (documentation surfaced for version 25.12.0 on October 3, 2026).
Infinite-scroll sites commonly add items in response to scroll activity. If you capture before triggering that activity, the screenshot can omit items the page has not loaded. The reliable sequence is therefore: navigate, scroll in controlled increments, check for progress, stop at a deliberate limit or completion signal, return to the top if appropriate, and capture.
Scroll, wait, check progress, then capture
This example assumes page has already navigated to the target URL. It scrolls the window toward the current bottom, pauses for the site to respond, and stops after three passes without an increase in document height or after 40 passes.
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// Assume `page` has already navigated to the target URL.
await page.evaluate(async () => {
const pause = ms => new Promise(resolve => setTimeout(resolve, ms));
let previousHeight = 0;
let unchangedPasses = 0;
const maxPasses = 40;
for (let pass = 0; pass < maxPasses; pass++) {
const height = document.documentElement.scrollHeight;
window.scrollTo(0, height);
await pause(700); // Tune for the site; this is not a Puppeteer default.
const nextHeight = document.documentElement.scrollHeight;
if (nextHeight <= previousHeight) {
unchangedPasses++;
} else {
unchangedPasses = 0;
}
previousHeight = nextHeight;
if (unchangedPasses >= 3) break;
}
window.scrollTo(0, 0);
});
await page.screenshot({ path: 'page.png', fullPage: true });The pause duration and pass limit are example safeguards, not Puppeteer defaults. Tune them to the target site and your capture budget. Height is a useful signal, but not a universal completion test: some sites append items without changing document height, load content inside a nested scroller, or expose a “load more” control instead.
Choose a trigger, completion signal, and bound
Trigger the right scrolling behavior
- Window scrolling: Use
window.scrollTo()when the document itself scrolls, as in the example. - Nested scroll container: Find the element that actually scrolls and advance its
scrollTop; scrolling the window may not trigger its feed. - “Load more” control: Locate and activate the control explicitly, then wait for the next items or loading indicator. Do not assume that scrolling alone will load them.
Measure a signal that matches the page
Document height works when adding feed items changes the page height. For other implementations, observe a feed item count, a loading indicator, or another page-specific marker. A stable item count after scrolling is often more informative than an unchanged height. Use selectors that match the actual page; there is no universal selector or completion signal for infinite-scroll sites.
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Set a hard stop
An infinite feed has no natural end, and a site may keep changing or retrying requests. Use a maximum pass count, maximum item count, or elapsed-time budget. Combine a hard limit with a completion signal—for example, stop when the item count has been unchanged for several checks, or when the pass or time limit is reached. This prevents an unattended capture from running indefinitely.
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Lazy-loaded images and other page-specific cases
Scrolling can trigger images that load only near the viewport, but behavior varies by site. A user report describes below-viewport images remaining blank until the page was manually scrolled; that is a practical warning, not a guarantee about every page. See the reported lazy-image issue.
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- If images are missing, scroll through the relevant regions before capturing and wait for the page’s image-loading behavior to complete.
- If content loads inside a nested scroller, scroll that container rather than the document.
- If a consent prompt or other overlay blocks the feed, handle it as the page requires before continuing.
- If a page changes content while capture is in progress, check the saved image rather than assuming the call’s success means every item and asset was ready.
Capture the whole page or only a region
Use fullPage: true when the goal is the full rendered document after scrolling has loaded the desired content. Puppeteer’s screenshot options also include clip for a defined region; these are different capture scopes, not alternatives for triggering infinite-scroll requests. See the ScreenshotOptions reference for the documented options. If you need only a particular element, Puppeteer’s screenshots guide documents element screenshots as well.
Verify the saved screenshot
A completed screenshot call confirms that Puppeteer produced a capture; it does not establish that the site finished loading every feed item or image. Open the saved image and check that the expected final item and below-the-fold assets are present. If the output is incomplete, adjust the trigger, progress signal, or wait strategy for that site and capture again.
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Troubleshooting
| Symptom | Likely cause | What to change |
|---|---|---|
| Only the initial items appear | The capture happened before scroll-triggered requests completed, or scrolling did not reach the feed’s actual scroller. | Scroll the correct target and wait for an item-count or loading-state change before capturing. |
| The loop stops while more items are available | Document height stayed constant even though the site can load items without changing it. | Replace the height-only check with a page-specific item count or loading indicator, while keeping a hard maximum. |
| The loop never reaches a natural end | The feed is genuinely unbounded, or its completion condition is not detectable through height. | Use a maximum number of items, passes, or elapsed time; treat that cap as the intended capture boundary. |
| Images are blank or absent | Images may be lazy-loaded, still loading, or dependent on scrolling into view. | Scroll through the image regions, allow the page to respond, and inspect the output. Results depend on the site. |
| The feed does not advance when the window scrolls | The page may use an inner scrolling element or a “load more” button. | Scroll the actual container or activate the control, then wait for a site-specific progress signal. |
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Frequently Asked Questions
Does Puppeteer’s fullPage option trigger infinite scrolling?
No. It requests a full-page capture of the page’s current contents; scroll first to trigger loading.
How can I avoid an endless scroll loop?
Use a hard pass, item, or time limit and stop based on a page-specific signal such as item count or a loading indicator.
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