185274 - Many images scaled to huge size freeze browser.

Status: RESOLVED INVALID

(Core :: DOM: CSS Object Model, defect)

Description

[Bartosz Wucke]

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2) Gecko/20021126

May be duplicate of 166862 but may be something different.

The URL link is an "off-topic" board, thread on "longest post". The server
allows html in posts. As a joke I tried putting 
<img src="(some tiny gif)" width="100%" height="40000"><br>
in my post, then marked it and ctrl-c, ctrl-v, keeping the last depressed for a
while, effectively producing several 100's of copies of the above, effectively
producing the longest post in the the forum :)
Unfortunately, when I tried viewing my post, CPU load went up to 100% and all
browser windows stopped responding. After some 5 mins like that I killed the
process.
From my experience producing very few images scaled up to similar size doesn't
cause problems, so the total size of the produced page may matter, that's what
could differ this bug from 166862. (few very big images vs many small images
scaled up)

Comment 1

[Junk_HbJ]

Please update your build, it's over two weeks old ;)

That said, wfm with 2002121308/Win98SE.

Comment 2

[Bartosz Wucke]

I've upgraded to Mozilla 1.3a and tried it today: wfm, but slows down to a crawl
Single screen redraw i.e. when scrolling the page takes about a second. CPU load
goes to about 100% too, so everything (non-mozilla apps too) becomes very dodgy.

Comment 3

[David Balch]

Hi Bartosz,

Are you sill seeing this problem with recent builds?

I cannot even get to the page, as it comes up with the redirection limit
exceeded - it looks like the site has been suspended.

I suggest this bug be marked invalid, based on:
 * The age of the bug
 * Performance improvements since Dec 2002
 * The likelyhood of there being many pages with 100's of 100%*40000px images is
probably quite low.
 * That site has gone.

Any objections?