491915 - canvas position gets out of whack when panning

Status: RESOLVED WORKSFORME

Description

[Brad Lassey [:blassey] (use needinfo?)]

Created attachment 376286 [details]
video

Once we get into this state, our content stays cut off. In the attached screen cast, I pan up to the point where you can't see the checkerboard, and when we repaint the checkerboard covers the same part of the screen it did before

Comment 1

[Brad Lassey [:blassey] (use needinfo?)]

note, that if you view this in wmp, it will show the first frame when the video ends.  We don't snap back to the original position, we're at the right scroll position, but the checkboard is showing through content. Use the scrubber it see this better.

Comment 2

[Matt Brubeck (:mbrubeck)]

I can't reproduce this in current Fennec builds.