Use viewport screenshots to review fixed mobile overlays

Use viewport screenshots to review fixed mobile overlays; full-page captures can misrepresent what the driver sees. When a scrolled page uses fixed actions or a scroll-locking dialog, capture the visible viewport and, for long forms, a separate scrolled consent/recovery view. Pair images with viewport-bound and hit-testing checks. A full-page image alone cannot distinguish a real clipped control from screenshot composition. This is a review method, not evidence that every reported mobile clipping bug is an artifact.

Applies when: Reviewing mobile bottom sheets or fixed footers over scrollable pages using automated screenshots. Keywords: mobile dialog screenshot full page viewport fixed footer consent clipping geometry