171895 - Images not loaded when inside element with display:none;

Status: RESOLVED DUPLICATE of bug 83774

(Core :: Graphics: ImageLib, defect)

Description

[José Jeria]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20020929
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20020929

The testcase contains a Table with a TR that has display:none;. Clicking on
"Expand" will show the TR. You will notice that the images inside that element
will start to load. Should'nt these images be loaded when the document loads?

See attached testcase. Empty your cache to see it again.

Reproducible: Always

Steps to Reproduce:


Actual Results:  
Images are loaded when display property is changed

Expected Results:  
Load the images when the document loads.

Comment 1

[José Jeria]

Attachment: Testcase

Comment 2

[Frank Wein [:mcsmurf]]

The Question here is: Bug or feature :-)? In the specs there stands nothing what
to do in such a case. On the one hand you could say there stands "display:none",
not "load:none". But on the other hand, it would make more sense if it isn't
loaded (someone wants to hide parts of his page per CSS, then it wouldn't make
much sense to load them).

Comment 3

[José Jeria]

Yeah, that is the question.
IE loads all the images while loading the document.

My 2 cents is that they should be loaded, otherwise what, you have to preload 
all the images that are hidden to avoid this?

Comment 4

[Boris Zbarsky [:bzbarsky]]

caillon, don't we already have a bug on this?  I could have sworn we did...

Comment 5

[José Jeria]

Boris, do you mean bug 83774?

Comment 6

[Boris Zbarsky [:bzbarsky]]

Yep

*** This bug has been marked as a duplicate of 83774 ***