NEW238543
If pinch-zoom is disabled with touch-action, then multi finger scrolling should also be disabled 
https://bugs.webkit.org/show_bug.cgi?id=238543
Summary If pinch-zoom is disabled with touch-action, then multi finger scrolling shou...
amorris
Reported 2022-03-30 03:03:06 PDT
As documented here: https://compat.spec.whatwg.org/#touch-action, "When specified, the pinch-zoom token enables multi-finger panning and zooming of the page.". And this implies that if pinch-zoom is not specified, then multi finger gestures should NOT pan the page. However, on Safari it appears they do. Steps to reproduce: 1. Go to https://huijing.github.io/touch-action/ and look at the element with touch-action: pan-x (this is also relevant to touch-action: pan-y or touch-action: pan-x pan-y, though that example page doesn't have that latter example) 2. With two fingers, attempt to pan the element Expected: No panning occurs Action: Panning happens For comparison, on Chrome on Android, multi finger panning is blocked when pinch-zoom isn't specified. See https://bugs.chromium.org/p/chromium/issues/detail?id=632525.
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Radar WebKit Bug Importer
Comment 1 2022-04-06 03:04:14 PDT
<rdar://problem/91344196>
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