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No need to rely on IntersectionObserver() or even for JavaScript to be enabled -- Adtech vendors (like Google) can now detect scroll position server-side!
by geocar 8y ago
No need to rely on IntersectionObserver() or even for JavaScript to be enabled -- Adtech vendors (like Google) can now detect scroll position server-side!
- renholder 8y agoAt least they're up-front about it[0]? [0] - https://docs.google.com/document/d/1e8ZbVyUwgIkQMvJma3kKUDg8UUkLRRdANStqKuOIvHg/edit# https://docs.google.com/document/d/1e8ZbVyUwgIkQMvJma3kKUDg8...
- thug 8y agoWhat? As far as I know this feature is completely client-side.
- lpellis 8y agoThe server will know how far you scrolled in a session by what images/iframes are being downloaded.
- Forge36 8y agoWith server side implications. The worst case would be a website stacking 1px images vertically to detect good far your scrolled
- thug 8y agoI see.. but this would only make a difference for people who disabled JS, and these people can probably also disable lazy loading.