The pointerevents/pointerevent_attributes_hoverable_pointers.html?mouse WPT is failing with (among other things) this error message: ``` mouse <pointereventtype>.button is -1 when mouse buttons are in released state. (Expected -1 but got 0) ``` This failure can be observed for all pointer event types bar `pointerup` and `pointerdown`, and hits to us not faithfully reproducing the `button` property as specified in the Pointer Events W3C spec: https://w3c.github.io/pointerevents/#the-button-property.
<rdar://problem/116027480>
Pull request: https://github.com/WebKit/WebKit/pull/18205
Committed 268459@main (18348e5bdfbb): <https://commits.webkit.org/268459@main> Reviewed commits have been landed. Closing PR #18205 and removing active labels.