305823 - Hidden <div> tags temporarily displayed on page load, causing a flicker.

Status: RESOLVED WORKSFORME

(Firefox :: General, defect)

Description

[jack]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

<div> tags set to css style display:none (specified in an imported css file, not
sure if it occurs with inline styles) are initially painted on the screen, then
disappear, causing a flicker. further, they seem to be displayed at the top left
of the html page, rather than down in the page where css rules would specify
they be placed. 

Reproducible: Always

Steps to Reproduce:
1. create an html page with a fair number (~20-50) hidden <div> tags
2.
3.

Actual Results:  
screen flickers during page load.

Expected Results:  
the screen should not flicker, since these <div> tags are set to display:none,
which means they should be invisible.

Comment 1

[jack]

It also happens with inline styles (styles defined in the html tag itself). 

Comment 2

[Martijn Wargers (dead)]

Most likely already fixed in current nightly trunk build.
Probably fixed by the widget state change caching bug.
Please test with nightly trunk build:
http://ftp.scarlet.be/pub/mozilla.org/firefox/nightly/latest-trunk/

Comment 3

[Daniel.S]

Yes, this is working. I have no idea how to test this in an automated test though.