[Webkit-unassigned] [Bug 189784] New: [Web Animations] DocumentTimeline::updateAnimations() is called endlessly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189784

            Bug ID: 189784
           Summary: [Web Animations] DocumentTimeline::updateAnimations()
                    is called endlessly
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: graouts at apple.com
                CC: dino at apple.com

We end up re-scheduling animation resolution on the immediate next run loop indefinitely when an element that had an accelerated animation applied has its renderer removed, for instance when "display: none" is set. This affects YouTube and yields very high power usage.

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