941972 - Fixed position divs fail to render properly when scrolling with touch in Metro

Status: RESOLVED DUPLICATE of bug 941050

(Core :: Panning and Zooming, defect)

Description

[Jim Mathies [:jimm]]

Attachment: test case

In metrofx the positioning of these elements lag behind content when scrolling. Desktop doesn't exhibit the issue.

Some site examples include -

http://marketwatch.com/
http://theverge.com/

Comment 1

[Jim Mathies [:jimm]]

Also note you can't reproduce with wheel scroll, only touch.

Comment 2

[Matt Brubeck (:mbrubeck)]

Is this a recent regression? I thought this was working correctly until recently.

Comment 3

[Matt Brubeck (:mbrubeck)]

The last good mozilla-central nightly was from 2013-11-18. The first bad nightly was 2013-11-19.  The nightly regression range is:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=f2adb62d07eb&tochange=ba9ecdea3a90

Maybe a regression from bug 937185.

Comment 4

[Jim Mathies [:jimm]]

My guess would be bug 919144. I'll do some backouts to test.

Comment 5

[Matt Brubeck (:mbrubeck)]

Yes, I think you're right.  This looks like probably a duplicate of bug 941050.

Comment 6

[Jim Mathies [:jimm]]

(In reply to Jim Mathies [:jimm] from comment #4)
> My guess would be bug 919144. I'll do some backouts to test.

Didn't have any luck on this, the build resulted in multiple failures in display list. Tried backing out both bug 919144 and bug 939607.

Comment 8

[alco]

Removing requested tracking flags since it's a dup, but if there is something else here feel free to mark accordingly