714507 - [CSS3] content:element() in any element or HTML5 Canvas in IMG element

Status: UNCONFIRMED

(Core :: CSS Parsing and Computation, defect)

Description

[Alexei]

Attachment: moz.html

User Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.63 Safari/535.7

Steps to reproduce:

Please - add support content of this HTML File. I known, that this is unreal, but you must do...

Comment 1

[Alexei]

Attachment: addition file

Comment 2

[Alexei]

Please - disable source code in bugzilla... This source code is long.

Comment 3

[:Ms2ger (he/him; ⌚ UTC+1/+2)]

Note that you'd need to use document.cssElementMap instead of document.CSSElementMap.

Comment 4

[Boris Zbarsky [:bzbarsky]]

So this is asking for us to implement the CSS3 Generated Content stuff that's not actually going to end up in a spec in its current form, right?

I don't think we should really worry about it until the spec is something resembling stable.

Comment 5

[jluyet]

Im pretty sure this relates to the same fix I'm thinking of which is:

<img class="logo" />

.logo{content: url("blank.gif");}

Currently in firefox the above example doesn't work. Class="x" is alot cleaner than saying <img src="blank.gif">.  It works in IE11, chrome, but not firefox.