Yes, this looks like that issue. You're test case does show this
problem.

My test case was taken from a test where I was stressing firefox and
my webserver. I experience some 10053 winsock errors after writing
large amounts of images to the winsocket. Still don't know why that
happens, but when stress testing I saw this behaviour in the netpanel.

The idea of my test is that every image requests 10 frames per second
(adjustable). After 100 request, it pauses for 2 seconds and adds
another img element. Then it starts requesting at a rate of 10 images
per second for the two img elements. This repeates. The test outputs
the total average frame rate per number of img elements. You can see a
drop in it when adding more img elements.

When checking the browser memory status (windows XP), I see a huge
increase in firefox. IE and chrome seems to stay more stable. After
running the test for a while (on my system with localhost server,
somewhere around 10 img elements), all browsers will eventually stop
responding and have to be terminated.



On 2 feb, 13:35, "Honza (Jan Odvarko)" <[email protected]> wrote:
> I think I have simplified the test case to the following:
>
> <button id="testButton" onclick="onExecuteTest(30)">Execute Test</
> button>
>
> <div id="content">
> <img id="image1" width="75px"/>
> <img id="image2" width="75px"/>
> <img id="image3" width="75px"/>
> </div>
>
> <script type="text/javascript">
> function onExecuteTest(counter)
> {
>     if (counter == 0)
>         return;
>
>     var image = document.getElementById("image" + ((counter %3) + 1));
>     image.src = "issue2710.php?noCache=" + new Date().getTime();
>
>     onExecuteTest(--counter);}
>
> </script>
>
> The src attribute is set, but before the request can complete it's
> changed again.
>
> Is that roughly what is happening at:http://mootools.net/shell/wtHtd/4/
> ?
>
> I think this is related tohttp://code.google.com/p/fbug/issues/detail?id=2710
>
> Online here:http://www.janodvarko.cz/firebug/tests/2710/issue2710.html
>
> Honza
>
> On Feb 2, 12:49 pm, "Honza (Jan Odvarko)" <[email protected]> wrote:
>
> > > For examle:http://mootools.net/shell/wtHtd/4/, hit the 'start'
> > > button. This loads a lot of images.
>
> > Yes, I can reproduce it.
>
> > The problem is that HTTP-ON-EXAMINE-RESPONSE is not fired sometimes
> > (looks like a Firefox problem).
>
> > I don't understand the test case, what is actually happening on the
> > page?
> > I have noticed that <img> elements are created and the src attribut is
> > modified, which executes all the requests. But if I try to simplify
> > the test
> > I can't reproduce that again.
>
> > Is that something special about how the images are handled?
> > Honza
>
> > On Feb 1, 9:33 am, woomla <[email protected]> wrote:
>
> > > When a webpage requests a lot of images, the netpanel shows all
> > > requests with spinners. After stopping to request the images, the last
> > > line in netpanel will actually show the resulting image. Using
> > > fiddler2 at the same time, I see a succes for every request, not only
> > > the last one. All images are requested with an unique noCache
> > > attribute, so the images are not taken from cache.
>
> > > Why are the results not shown in the netpanel (why are the lines keep
> > > showing the spinner)?
>
> > > For examle:http://mootools.net/shell/wtHtd/4/, hit the 'start'
> > > button. This loads a lot of images.

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