247002 - Status bar does not display "Done" when you use Javascript to preload images, even though the page has finished loading

Status: RESOLVED DUPLICATE of bug 209330

(Core :: DOM: Core & HTML, defect)

Description

[Toh Zhiqiang]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9

After Firefox finishes loading the page at
http://home.pacific.net.sg/~lifeguard/firefox_bug.htm, the status bar does not
display "Done", but other message like "Transfering data from..." or "Waiting
for ...".

This is due to the following Javascript that preloads the image:
function preloadImg() {
	var img = new Image();
	img.src = "arrow.png";
}

In addition, as long as "Done" is not displayed, you cannnot use
window.status="Some text" to change the status bar message.

Pressing F5, or clicking the refresh button does not help. However, if you
reload the page by clicking in the location bar and press Enter, the status bar
will display "Done".

If you press F5 or clicking the refresh button AGAIN, the status bar does NOT
display "Done".

Reproducible: Always
Steps to Reproduce:
1. Clear the browser's cache
2. Load the page at: http://pachome2.pacific.net.sg/~lifeguard/firefox_bug.htm
3. Take note of the status bar message after the page finishes loading
4. Press F5 or click the refresh button
5. Take note of the status bar message after the page finishes loading

Actual Results:  
Status bar message for Step 3 and Step 5 is "Transfering data from..." or
"Waiting for ..."

Expected Results:  
Status bar message should be "Done"

Comment 1

[Willem van Duijn]

I've got a similar problem here:

When I go to a site like <http://geckow.net/misc/site_links.html> it loads
correctly, and the statusbar displays 'Done'. But when I hit 'refresh' (F5) it
loads the page again, but now the statusbar displays 'Waiting for geckow.net..'
although the page is displayed correctly.

Steps to reproduce:
1) Go to <http://geckow.net/misc/site_links.html>
2) Notice the statusbar, and now hit refresh
3) The statusbar now displays 'Waiting for geckow.net', even if the entire page
is rendered completely after a while.

(this page also preloads images)

I have this problem quite a long time, even in the 'stable' releases.

Comment 2

[Willem van Duijn]

Can someone change the status of this bug? I don't have sufficient rights for
that, and the problem still persist in the latest build.

Comment 3

[timeless]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8a3) Gecko/20040721

Comment 4

[Boris Zbarsky [:bzbarsky]]

Darin, this page loads an image from inside onload.... So the browser status
handler may never get a STATE_IS_DOCUMENT notification here when the image
finishes loading (though it should get  a STATE_IS_NETWORK, I would think).

Comment 5

[zug_treno]

Related to bug 250542, bug 246052 and bug 248749?

Comment 6

[Boris Zbarsky [:bzbarsky]]

*** Bug 282352 has been marked as a duplicate of this bug. ***

Comment 7

[Shailesh Humbad]

*** Bug 288398 has been marked as a duplicate of this bug. ***

Comment 8

[Shailesh Humbad]

(In reply to comment #7)
> *** Bug 288398 has been marked as a duplicate of this bug. ***

Please see bug https://bugzilla.mozilla.org/show_bug.cgi?id=288398
for a minimal example to reproduce the situation.

Comment 9

[Christian :Biesinger (don't email me, ping me on IRC)]

*** This bug has been marked as a duplicate of 209330 ***