When tapping alternately with two fingers, TouchEvent and PointerEvent don't fire for some touches. 
https://bugs.webkit.org/show_bug.cgi?id=277486
Summary When tapping alternately with two fingers, TouchEvent and PointerEvent don't ...
ayagawap
Reported 2024-08-01 06:32:23 PDT
Created attachment 472032 [details] A circle is drawn at the touched location. A green circle is drawn for PointerEvent, a red circle for TouchEvent. When tapping with two fingers alternating between each other, some TouchEvents and PointerEvents don't fire. This doesn't seem to happen if you tap slowly, but if you tap quickly in succession, it happens. Interestingly, this doesn't happen if one finger is already over the element. Can I suppress this with code? Or should I wait for you guys to do something? - Test Code : https://github.com/AXT-AyaKoto/web-playground/blob/main/multiTouch/index.html (or Attachment "touch-test.html") - GitHub Pages : https://axt-ayakoto.github.io/web-playground/multiTouch/ - Test Movie : https://youtu.be/Du2mdsjZpg4
Attachments
A circle is drawn at the touched location. A green circle is drawn for PointerEvent, a red circle for TouchEvent. (4.41 KB, text/html)
2024-08-01 06:32 PDT, ayagawap 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2024-08-08 06:33:13 PDT
<rdar://problem/133457579>
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