198965 2019-06-18 08:23:01 -0700 Pointer Events incorrectly handles simultaneous mouse buttons (TP 85) 2019-06-26 11:42:15 -0700 1 1 1 Unclassified WebKit DOM Safari Technology Preview Mac macOS 10.14 RESOLVED DUPLICATE 198462 InRadar P2 Normal --- 1 ashley webkit-unassigned graouts webkit-bug-importer oldest_to_newest 1545616 0 ashley 2019-06-18 08:23:01 -0700 Demo: https://www.scirra.com/labs/bugs/safaripointerevents.html Look at console messages while following these steps: 1. Press down left mouse button and hold it 2. Press down right mouse button and hold it 3. Release left mouse button 4. Release right mouse button Observed result: The sequence of events is pointerdown, pointerdown, pointerup, pointerup Expected result: The sequence of events is pointerdown, pointermove, pointermove, pointerup. This is how it works in Chrome and Firefox. 1545734 1 webkit-bug-importer 2019-06-18 12:50:43 -0700 <rdar://problem/51861620> 1545741 2 graouts 2019-06-18 12:55:03 -0700 Hi Ashley. What version of Safari is this? This should have been handled by the fix for https://bugs.webkit.org/show_bug.cgi?id=198462, which landed after the cutoff for the last Safari Technology Preview build. Alas, I don't actually have a mouse handy to try this out, but this bug was specifically about the correct support of chorded mouse interactions and the Web Platforms Tests work as expected. 1545743 3 graouts 2019-06-18 12:57:15 -0700 Oh, I see now this is STP 85. Could you try with a recent WebKit build? See https://webkit.org/build-archives/. 1545745 4 graouts 2019-06-18 12:57:31 -0700 *** This bug has been marked as a duplicate of bug 198462 *** 1548082 5 graouts 2019-06-26 11:42:15 -0700 Please test this again with STP 86.