365669 - same images on page loaded every time separately

Status: RESOLVED FIXED

(Core :: Graphics: ImageLib, defect)

Description

[Nemanja Avramović]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.9) Gecko/20061206 Firefox/1.5.0.9
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.9) Gecko/20061206 Firefox/1.5.0.9

Since I've installed FF 1.5.0.9 same images on one page (e.g. images shown on forums for each post, such as "quote", "edit", "delete", etc.) are loaded one by one instead of all together (like in previous versions). This slows down browsing a lot :(
In previous versions (using FF since 1.0) there were no such problems.
Is there a way to turn this back like before in about:config or...?

Reproducible: Always

Steps to Reproduce:
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Comment 1

[Nick Price]

This issue is still a problem in 3.0.4

Comment 2

[Mike Beltzner [:beltzner, not reading bugmail]]

Needs a confirmation, and a testcase. Also --> Core::Layout

Comment 3

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

Sounds like something Joe Drew fixed recently, maybe?

Comment 4

[Nick Price]

I have created a "Proof-of-concept" demonstration for this bug. It uses PHP to generate a unique image for each server request.  It can be viewed at http://dev.prient.co.uk/slow_images.php

When viewed in Internet Explorer 7, you will see 100 identical images; when displayed in Firefox 3.0.4, 100 different images are generated.

Using http://dev.prient.co.uk/slow_images.php?mode=slow puts a 1 second delay in the image creation process (server-side).  This illustrates that (at least on my configuration) Firefox sends 6 GET requests in parallel for the images.

Using http://dev.prient.co.uk/slow_images.php?mode=source displays the PHP source used for the page - or I can upload it here if you prefer.

Unfortunately, I don't have sufficient access to a server so that I can mess with the configuration enough to demonstrate that this also happens when the image is a normal ".png" or ".gif" file - but browsing any forum site on a slow connection will demonstrate this well enough (as described by the original bug report).

Comment 5

[Joe Drew (not getting mail)]

Attachment: Screenshot of Firefox 3.1 nightly

Nick, looks like we've fixed this in Firefox 3.1. (It's not guaranteed, of course -- we can always expire stuff out of cache. But at least with my browser, Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b3pre) Gecko/20081216 Shiretoko/3.1b3pre, loading your pages shows me a bunch of the same image.) For that reason, I'll set this to FIXED; the fix is much too involved to be backported to Firefox 3.0, but 3.1 will have it.