[Webkit-unassigned] [Bug 99939] should disallow gc/layout/stylerecalc in beforeunload/unload handlers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=99939





--- Comment #4 from Ojan Vafai <ojan at chromium.org>  2012-10-22 15:56:35 PST ---
(In reply to comment #2)
> What would you return to layout-dependent JS queries in beforeunload/unload handlers?

Stale numbers?

> I doubt that disabling GC would really make things better, unless the whole process was going to be killed just after the (before)unload handler finished.  Otherwise it's just moving cost around that would happen soon anyway.

Yes. This would potentially help for tab closing and cross-process navigations. Again, we should histogram this stuff first.

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