Leak with events in IE

[olau]

The test case in issue 2123 is leaking for me in IE 6, 7 and 8 with jQuery 1.5.1. Here's a version that loops and setTimeouts to make the problem easier to see:

​http://jsfiddle.net/En8Ue/

Just open task manager and watch it grow.

I was going to say that this is only a problem with custom events, but if I change 'pseudoEvent' to 'click', it does in fact still leak, although not as much.

[dmethvin]

I have been able to repro this and am looking at it.

[dmethvin]

This is a horribly frustrating leak! It seems like there is some interaction with jsFiddle that prevents the test case from failing (leaking) unless it is loaded from a clean start. If you simply change the version of jQuery and press Run or reload it won't always start leaking.

That said, I don't think this is a blocker. I can seem to reproduce the behavior consistently all the way back to 1.3.2 in IE8 so if there is a leak it has been going on quite a while.

​http://jsfiddle.net/En8Ue/7/

This test case is an extreme so perhaps in normal cases this leak isn't significant enough to cause problems. I walked through the code and it seems to be releasing things properly, but I'll leave it marked high and we can come back to it later.

[anonymous]

Can we have a status update on this one?

[dmethvin]

I've been through the code and can't find the leak. It still seems to be present in 1.7. Ideas welcome.

[Oleg]

Fix #8545. Plug event handling memory leak in oldIE.

Changeset: 203a168980ece60213c87a10ac0ad294783d5563

[anonymous]

'change' event handler leaks in IE 7/8: ​http://jsfiddle.net/En8Ue/51/

[anonymous]

Replying to anonymous:

'change' event handler leaks in IE 7/8: ​http://jsfiddle.net/En8Ue/51/

With the latest version of jquery.

[markel]

Replying to anonymous:

Replying to anonymous:

'change' event handler leaks in IE 7/8: ​http://jsfiddle.net/En8Ue/51/

With the latest version of jquery.

Its very different leak, created ticket for it – ​http://bugs.jquery.com/ticket/12177