NEW 239416
"touch-action: none" does not prevent page change gestures 
https://bugs.webkit.org/show_bug.cgi?id=239416
Summary "touch-action: none" does not prevent page change gestures
Hristiyan Dodov
Reported 2022-04-16 04:28:43 PDT
Created attachment 457746 [details] Bug reproduction page Pointer gestures starting on a `touch-action: none` element should not trigger the browser's default behavior of going to previous/next page. The spec (https://www.w3.org/TR/pointerevents3/) says: > Direct manipulation interactions that begin on the element MUST NOT trigger behaviors related to viewport panning and zooming. Page change gestures don't manipulate the viewport itself. Thus, one could argue that touch-action should not affect them. However, this introduces unexpected end-user behavior. If a page implements custom panning gestures, the user could suddenly go to a different page, due to the default browser behavior. Since touch-action's purpose is to enable custom gestures and get default browser behavior out of the way, I believe it should cover page change gestures as well. Android browsers also have similar page change gestures from the edge of the screen, but `touch-action: none` disables them, as expected.
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Bug reproduction page (528 bytes, text/html)
2022-04-16 04:28 PDT, Hristiyan Dodov 		no flags
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Radar WebKit Bug Importer
Comment 1 2022-04-23 04:29:12 PDT
<rdar://problem/92213258>
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