192427 - after closing tab, site is not redrawn / rendered which causes unnescessary scrollbars

Status: RESOLVED WORKSFORME

(Core :: Layout, defect)

Description

[Sander Smeenk]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021226 Debian/1.2.1-9
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021226 Debian/1.2.1-9

On the page at http://www.freshdot.net/, is a site that fits a Mozilla window on
1024x768 resolution, if you open a new tab, an new "menu bar" appears and the
page doesn't fit the mozilla window anymore, so a scrollbar appears. When
closing the tabs again, the site is not redrawn, so the scrollbars stay, until I
press reload.

Reproducible: Always

Steps to Reproduce:
1. Use a mozilla window sized 1024x768
2. Browse to http://www.freshdot.net/ without using tabs
3. See how the page renders completely in one window
4. Press Control-T to generate a new tab
5. Switch to the first tab with the site in it & see the scrollbars
6. Switch back to the new tab and close it. The scrollbars stay.
7. Press reload to remove them again.
Actual Results:  
Site was not redrawn.

Expected Results:  
Site should have been redrawn. :)

See http://www.freshdot.net/px/moz.jpg for an example of how my Mozilla window
looks like, it might be relevant to get the exact size / format of the
render-canvas for this to happen.

Comment 1

[Andrew Schultz]

this is not actually a problem with tabs.  it can also be reproduced by making
the window shorter a little bit at a time.  Once scrollbars appear make the
window taller again.  Making it as tall as it could be without scrollbars does
not remove the scrollbars.

The problem is that making it short creates a vertical scrollbar which then
necessitates a horizontal scrollbar.  The scrollbars don't go away until the
vertical height can fit in the window even with the horizontal scrollbar.

I suspect that Mozilla is leaving the scrollbars to prevent a page with dynamic
content from oscillating.

==> layout

Comment 2

[Mats Palmgren (inactive)]

http://www.freshdot.net/ seems to have been redesigned and is not showing
the problem anymore.  Sander Smeenk, can you provide us with a testcase
that demonstrates the problem please?

Comment 3

[Jason Barnabe (np)]

URL doesn't show the problem anymore. Marking WFM.