[Webkit-unassigned] [Bug 236393] New: KeyEvents are limited to one per render frame

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236393

            Bug ID: 236393
           Summary: KeyEvents are limited to one per render frame
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: UI Events
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: msfeldstein at gmail.com

Safari limits text input to one keypress per frame and queues up the rest, while chrome will send all pending keypresses in the next frame.  So if you have any performance issues while typing quickly it will coalesce into extremely poor performance.

In the codepen, if you open it in chrome and bash keys you'll see that it keeps up with your typing, but if you do the same in safari, the events will come in one at a time and the backlog will create coalescing performance issues.

https://codepen.io/msfeldstein/pen/gOXmPWL

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