[Webkit-unassigned] [Bug 194140] New: [iOS] Consistent 1 sec hang when triggering modal alerts while handling synchronous touch events

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=194140

            Bug ID: 194140
           Summary: [iOS] Consistent 1 sec hang when triggering modal
                    alerts while handling synchronous touch events
           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: wenson_hsieh at apple.com

To reproduce:

1. Go to https://whsieh.github.io/examples/alert
2. Tap on either button

Expected: modal UI should pop up immediately
Observed: 1 second hang before showing modal UI

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