api.MouseEvent.movementX - not supported in iOS Safari on pointermove events

[greggman]

What type of issue is this?

Incorrect support data (example: Chrome says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

MDN says movementX and movementY are supported in Safari but they are not, on iOS Safari 16.3

example: https://jsgist.org/?src=64c32271a3e7ac51918146b111a2cfd9

Works in Safari on Mac, not in Safari on iOS

What browsers does this problem apply to, if applicable?

Safari

What did you expect to see?

expected to get values for movementX and movementY from the PointerEvent which inherits from MouseEvent according to MDN

Did you test this? If so, how?

https://jsgist.org/?src=64c32271a3e7ac51918146b111a2cfd9

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

https://bugs.webkit.org/show_bug.cgi?id=167775

Do you have anything more you want to share?

No response

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/movementX

MDN metadata

MDN page report details

• Query: api.MouseEvent.movementX
• Report started: 2023-04-09T17:44:57.035Z

[greggman]

Filed a new webkit bug: https://bugs.webkit.org/show_bug.cgi?id=255207

[MAG-ThomasGreenhalgh]

Believe this has now been fixed in iOS Safari 17: https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes