277200 - [FIX]Black bars appear when scrolling down and then up again

Status: VERIFIED FIXED

(Core :: Layout: Block and Inline, defect, P2)

Description

[Martijn Wargers (dead)]

Scrolling down and then scrolling up again on this site causes black bars to
appear, just under the "check availability" links.

This was reported at:
http://forums.mozillazine.org/viewtopic.php?t=195864

Comment 1

[Martijn Wargers (dead)]

Attachment: Testcase

The overflow:hidden; rule for the <span> is necessary to trigger the bug. I
find this kind of odd, since overflow should not 'work' for inline elements.

Comment 2

[Mats Palmgren (inactive)]

Selecting the "Mountain..." text is also a way to trigger the bug.

Comment 3

[Boris Zbarsky [:bzbarsky]]

Attachment: Patch

We were just neglecting to flag the view as having transparent content, since
we thought we had invisible overflow...

Comment 4

[Boris Zbarsky [:bzbarsky]]

Martijn, good catch on the overflow thing!

Comment 5

[Robert O'Callahan (:roc) (email my personal email if necessary)]

Comment on attachment 173039 [details] [diff] [review]
Patch

bizarre

Comment 6

[Boris Zbarsky [:bzbarsky]]

Fixed.

Comment 7

[Martijn Wargers (dead)]

Verified.