424451 - Forcefully kill inner windows when outer window is closed

Status: NEW

(Core :: DOM: Window and Location, defect, P3)

Description

[Ben Turner (not reading bugmail, use the needinfo flag!)]

Talked with jst today about forcing inner windows to disappear whenever the outer window is closed. That way external refs to the outer window (from JS, mostly) wouldn't keep very many things alive.

As I understand it closed windows in JS are mostly useless husks anyway, so this would just let us do better internal memory management without really altering external behavior.

We'd then be able to remove the ShouldBeFreed CC hints in outer windows to avoid lots of false-positive warnings like in bug 423723.

Comment 1

[Damon Sicore (:damons)]

marking wanted1.9.1? to get this in the triage queue.  If this needs to be blocking1.9.1?, please mark it as so.

Comment 2

[Zack Weinberg (:zwol)]

this doesn't appear to be mac-specific?

Comment 3

[Ben Turner (not reading bugmail, use the needinfo flag!)]

(In reply to comment #2)

-> All.

Comment 4

[Jonas Sicking (:sicking) No longer reading bugmail consistently]

Marking wanted but just as a P2, feel free to up the priority if we suspect this is a cause for many leaks.

Comment 5

[Marion Daly [:mdaly]]

Ben: are you still working on this? Is this still a priority? Should we move this to P3?

Comment 6

[Ben Turner (not reading bugmail, use the needinfo flag!)]

I am not working on this.