957999 - Investigate why XBL event handlers are still invoked after binding destruction

Status: RESOLVED WONTFIX

(Core :: XBL, defect)

Description

[Mike de Boer [:mikedeboer]]

In bug 951142 we could reach no other conclusion than the cause must lie in event handlers still being active AFTER the binding is destroyed. Please read the entire comment thread in that bug for more background on how we reached that conclusion.

I can not reproduce the issue locally, which is why the summary says 'investigate'. IOW, I was unable to create a standalone testcase, so I could only perform a dry analysis.

As mentioned in bug 951142, I strongly suspect there's an issue with clearing capturing event handlers that are in-flight during a binding's destruction phase.

Comment 1

[Boris Zbarsky [:bzbarsky]]

XBL is now disabled in Firefox (Bug 1583314) and is in the process of being removed from Gecko (Bug 1566221), so closing bugs requesting changes to its implementation as wontfix.