javascript: and data: urls in css

Quick question - would I be right in saying that urls in for example
css content or background-image elements cannot be a javascript: or
data: type urls? Doesn't seem to work in Firefox 1.5, just wondering
if that's explicitly specified anywhere.

Tony A. <you.dont (AT) need (DOT) to.know> scripsit:

Quick question - would I be right in saying that urls in for example
css content or background-image elements cannot be a javascript: or
data: type urls? Doesn't seem to work in Firefox 1.5, just wondering
if that's explicitly specified anywhere.

The javascript: pseudo-URL format is not specified in any published
specification. Most current browsers support this hack in HTML links but
hardly elsewhere.

The data: URL format is in principle standardized, but browser support to it
is limited in HTML and might be nonexistent in CSS constructs. Use http:
URLs instead, making them refer to server-side scripts when needed. (You can
embed data into such a URL, into the query part, naturally assuming that the
script is written to process and use the data to generate the resource it
sends back to the browser.)

--
Yucca, http://www.cs.tut.fi/~jkorpela/

Jukka K. Korpela wrote:

The data: URL format is in principle standardized, but browser support
to it is limited in HTML and might be nonexistent in CSS constructs.

data: URLs can be used, and are supported, in CSS by at least Firefox
and Opera, but not IE. I can't recall which other browsers do or do not
support them.

--
Lachlan Hunt
http://lachy.id.au/
http://GetFirefox.com/ Rediscover the Web
http://GetThunderbird.com/ Reclaim your Inbox

Lachlan Hunt wrote:

Jukka K. Korpela wrote:
The data: URL format is in principle standardized, but browser
support to it is limited in HTML and might be nonexistent in CSS
constructs.

data: URLs can be used, and are supported, in CSS by at least
Firefox
and Opera, but not IE. I can't recall which other browsers do or do
not support them.

Thanks guys, appreciate the advice.