Drag-only controls need a single-pointer alternative

The check looks for custom slider handles: [role="slider"], the handle classes of noUiSlider, jQuery UI and Ion.RangeSlider, and class names such as price-handle. It skips input[type="range"], handles that are hidden, under 4 px or aria-disabled="true", and class-matched elements over 80 px or containing an image. At most six per page are checked.

A handle outside the tab order is a finding. A focusable one gets an arrow key along its axis, then, if nothing changed, one across it. If neither changes aria-valuenow, aria-valuetext, its text or position on the track, it is a finding. A key press that navigates away is undone by a reload; that slider and later focusable ones go to needs review.

Zoom widgets at least 80 by 80 px with draggable="true" or touch-action: none and no zoom control nearby go to needs review too. The scanner does not turn needs review into findings today. Only keys are pressed, so the check does not test whether a tap or click alone sets a value.