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fix(humanize): fall back to window dims when viewport is null

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Headed launches default to no_viewport, so page.viewport_size is None and
human scroll raised "Viewport size not available". Fall back to live
window.innerWidth/innerHeight. Covers Playwright (py sync/async, JS) and
Puppeteer paths.
This commit is contained in:
CloakHQ
2026-06-23 01:34:07 +02:00
parent 29679a73bf
commit 9c3ed2dcba
4 changed files with 34 additions and 4 deletions
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js/src/human/scroll.ts
+10 -2
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@@ -53,8 +53,16 @@ export async function humanScrollIntoView(
cursorY: number,
cfg: HumanConfig,
): Promise<{ box: ElementBounds; cursorX: number; cursorY: number; didScroll: boolean }> {
const viewport = page.viewportSize();
if (!viewport) throw new Error('Viewport size not available');
// Headed launches default to no_viewport so the page tracks the real OS
// window; page.viewportSize() is then null. Fall back to the live window
// dimensions so humanize works headed (the stealth-relevant mode).
let viewport = page.viewportSize();
if (!viewport) {
viewport = await page.evaluate(
() => ({ width: window.innerWidth, height: window.innerHeight }),
);
}
if (!viewport || !viewport.height) throw new Error('Viewport size not available');
let box = await getBox();
if (!box) throw new Error('Element not found while scrolling into view');