[Webkit-unassigned] [Bug 193088] New: CSS Transition sometimes jumps back and forth between initial position and current position

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=193088

            Bug ID: 193088
           Summary: CSS Transition sometimes jumps back and forth between
                    initial position and current position
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: xidorn-webkit at upsuper.org
                CC: bfulgham at webkit.org, simon.fraser at apple.com,
                    zalan at apple.com

Created attachment 358197

  --> https://bugs.webkit.org/attachment.cgi?id=358197&action=review

testcase

See the attachment. When you move mouse, there should be a blue block follows the cursor with a delay. However, in Safari Technology Preview, it jumps back and forth if you move mouse continuously.

Gecko has similar bug which I reported in https://bugzilla.mozilla.org/show_bug.cgi?id=1517168 which you may be interested.

Safari 12.0.2 doesn't have this issue, so it seems like a regression between that and the preview version.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20190102/2bf243c8/attachment.html>