See https://bugzilla.mozilla.org/show_bug.cgi?id=849441#c0 7) What I see is, not only wrapper but also all app closing transition is very slow recently. See https://bugzilla.mozilla.org/show_bug.cgi?id=849441#c17 my comment. Tim said this may be a gecko performance regression, but we have a 300ms timer to cancel the event callback before. I am not sure why it's removed from gaia. If I find that's a must-have change(really?), I will close this bug. Tracking.
Confirmed bug 831391's patch changes 300ms to 1000ms. An old enough patch so I won't back it out, but rather suggest to fix wrapper itself(delay the removeClass('visible')) in bug 849441.
Status: NEW → RESOLVED
Last Resolved: 6 years ago
Resolution: --- → WONTFIX
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