208384 - background images on :hover do not preload + forced preloading with relative url's doesn't work

Status: RESOLVED DUPLICATE of bug 57607

(Core :: CSS Parsing and Computation, defect)

Description

[Julius Geczy]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3b) Gecko/20030210
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3b) Gecko/20030210

I have a CSS graphic rolover menu of anchors set to block mode with bg-images on
normal state and :hover pseudoclass. Used background images on :hover do not
preload! After the page loaded, the :hover bg image starts loading at the first
use of rolover - blank rectagle displayed temporarily.

I tried to preload them with JavaScript (relatively linked urls) - Moz didn'
identify images with the same relative url on the page with those in the CSS :hover.

Even preloading them with another block in CSS, using the same relative URL
didn't identify images as the same. Load on first use :(.

I managed to fix the CSS preloading by putting the absolute URLs into
background-image values. Now the identifying works, but makes the stylesheet
unportable :(

fixed version will be available after 6/6/2003 at the mentioned URL. Portability
issue solved by CSS stylesheet generated by PHP.

Reproducible: Always

Steps to Reproduce:
1.
2.
3.

Comment 1

[Hixie (not reading bugmail)]

This is probably a dup. We should be pre-loading all URLs mentioned in stylesheets.

Comment 2

[Christopher Aillon (sabbatical, not receiving bugmail)]

It's a known bug that we don't load background images until paint.

*** This bug has been marked as a duplicate of 57607 ***