568842 - Firefox loads pictures twice, when a big javascript file is included in the page and the image was redirected

Status: RESOLVED DUPLICATE of bug 552605

(Firefox :: General, defect)

Description

[Roland]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 (.NET CLR 3.5.30729)

Firefox will load pictures double under certain circumstances 
- the header contains a link to a big javascript file
- the image is redirected by the server(first response is a http code 302)
- the user uses the refresh button instead of typing the url and hitting enter

Reproducible: Always

Steps to Reproduce:
1. add a big JavaScript file
<script type="text/javascript" src="http://ndpsoftware.com/js/prototype.js"></script>
2. add an image, that comes from a redirect
<img src="http://gelbseit.ivwbox.de/"></img>
3. load the page
4. hit f5
Actual Results:  
The image is loaded twice (http codes: 2x302 and 2x200)
You can verify that with firebug, wireshark or fiddler



Expected Results:  
The image should be loaded once (http codes: 1x302 and 1x200)

The problem still occurs in FF save mode.
It works with IE7,Opera,Safari.

Comment 1

[Roland]

Attachment: a page with this problem

Comment 2

[Roland]

Attachment: Output from Fiddler

Comment 3

[Roland]

Comment on attachment 448019 [details]
a page with this problem

This page 2 pictures.
The google picture was not redirected and is loaded once. The IVW Pixel is loaded twice.