[Webkit-unassigned] [Bug 191721] New: Shift-Esc, or CapsLock-Esc, dispatches excessive keydown events

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Nov 15 15:30:24 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=191721

            Bug ID: 191721
           Summary: Shift-Esc, or CapsLock-Esc, dispatches excessive
                    keydown events
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Macintosh
                OS: macOS 10.14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Event Handling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ivanreese at gmail.com

1) Navigate to about:blank
2) Open the console
3) run: window.addEventListener("keydown", function(e) { console.log(e)})
4) Compare the number of events fired when using Esc on its own versus Shift-Esc or Esc while CapsLock is on

On one of my sites, I get double Esc events when doing Shift/Caps-Esc. On about:blank, I get hundreds of extra events per frame.

Firefox and Chrome don't exhibit this behaviour — they generate one event per key press (ignoring, of course, key repeat).

Also had a friend repro this on a different machine, same issue.

Affects current release of Safari (12.0.1, 14606.104.1.1) and Safari TP (r70, 12.1, 14607.1.13). Couldn't get WK nightly to launch, so I can't check there.

Thanks for all your hard word, WebKit team!

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