NEW 18792
No keyup event generated when turning caps lock on 
https://bugs.webkit.org/show_bug.cgi?id=18792
Summary No keyup event generated when turning caps lock on
Darin Adler
Reported 2008-04-28 14:38:55 PDT
Testing with the W3 page <http://www.w3.org/2002/09/tests/keys-cancel2.html> I noticed that no keyup event was generated when turning caps lock on. But one was generated when turning it off.
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Radar WebKit Bug Importer
Comment 1 2012-12-11 21:33:16 PST
<rdar://problem/12861840>
Mark Rowe (bdash)
Comment 2 2012-12-11 21:34:25 PST
I believe this is an issue in an underlying component of OS X, and I'm not aware of any workaround.
Ryosuke Niwa
Comment 3 2012-12-12 14:17:27 PST
Also see https://bugzilla.mozilla.org/show_bug.cgi?id=712535. In particular, the reported behavior of WebKit seems to indicate we have more bugs in this area: <blockquote> I've tested this in Chrome and Safari, both of which fire a keyup event after toggling the caps-lock key. Actual results: On the first press of caps-lock the keydown event fires. On the second press of caps-lock the keydown event fires again. Expected results: On the first press of caps-lock the keydown event should fire. On the second press of caps-lock the keyup event should fire, Not keydown again. </blockquote>
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