[Webkit-unassigned] [Bug 165403] New: Almost half-second stall scrolling apple.com because of synchronous getPositionInformation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165403

            Bug ID: 165403
           Summary: Almost half-second stall scrolling apple.com because
                    of synchronous getPositionInformation
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: thorton at apple.com

getPositionInformation often does a lot of work that it doesn't need to, and is called synchronously from the UI process.

We should try to minimize the work it does to only what is needed, especially when it comes to snapshotting Web content, which is very expensive.

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