User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4a) Gecko/20030324 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4a) Gecko/20030324 Mouse-wheel scrolling in an IFRAME also scrolls the main window as well. Reproducible: Always Steps to Reproduce: 1. Go to any site with an IFRAME, e.g. bugzilla 2. Mouse wheel in the IFRAME that comes up when you search for bugs Actual Results: The main window scrolls as well Expected Results: The IFRAME should scroll only I think this broke when smooth scrolling was introduced in 2003032408

Confirming with Windows XP, build 2003032408

That would be surprising. We haven't changed how mousewheel events are delivered.

I see the bug. It only happens when smooth scrolling is enabled.

sorry, should've been clearer about that

The News iFrame on http://www.k10k.net is a good example of this

*** Bug 200567 has been marked as a duplicate of this bug. ***

*** Bug 201007 has been marked as a duplicate of this bug. ***

The old way of detecting a failed scroll operation doesn't work anymore. This way does.

Comment on attachment 120542 [details] [diff] [review] fix Another easy one for ya, bz :-)

Checked in.

very cool. will this fix be reflected in the 4/16 or 4/17 nightly?

Maybe someone fixed bug 199471 too while they were in the IFRAME code?

This has absolutely nothing to do with bug 199471. This fix will show up in tonight's builds.