150963 - scrolling up and down the page, makes the content disappear temporarily

Status: RESOLVED DUPLICATE of bug 79315

(Core :: CSS Parsing and Computation, defect)

Description

[Madhur Bhatia]

Go to :-
http://www.people.fas.harvard.edu/~dbaron/css/test/sec090302c
http://www.people.fas.harvard.edu/~dbaron/css/test/sec090302a

scroll up and down the page 

actual:- a part of the content of the page disappears. but when i switch between 
windows and come back to the testcase window, i see the content displayed 
completely.

I noticed that, those paragraphs disappear which have a style of 
1)  position : relative ; top : <length>  
2)  position : relative ; bottom : <length> | <percentage>

I have taken snippets of these 2 testcases and have a reduced testcase attached.

THis is happening on all platforms - on trink as well as branch builds.

Comment 1

[Madhur Bhatia]

Attachment: reduced test case

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Marking duplicate of a bug that I just gave a better summary.

*** This bug has been marked as a duplicate of 79315 ***

Comment 3

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

*** Bug 161755 has been marked as a duplicate of this bug. ***