[Webkit-unassigned] [Bug 189586] New: touchmove event not fired when dragging from bottom

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189586

            Bug ID: 189586
           Summary: touchmove event not fired when dragging from bottom
           Product: WebKit
           Version: Safari 10
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Event Handling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: david at duong.cz

Created attachment 349667

  --> https://bugs.webkit.org/attachment.cgi?id=349667&action=review

Demonstration of bug on iOS simulator

Attaching a touchmove event to prevent background scrolling on iOS. Found out, that when the UI is collapsed and user tries to drag from bottom, the touchmove event is not called.

Please see the attachment below, taken from simulator. Source code can be seen here: https://codesandbox.io/s/9ownj5y5lo

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