[whatwg] Creative Commons Rights Expression Language

Kristof Zelechovski giecrilj at stegny.2a.pl
Thu Aug 21 12:45:14 PDT 2008

I was trying to explain the rejection of namespaces in general because it is
a general decision.  It is not enough to make sure this particular use case
does not cause problems.
AFAIK, you can make a legacy browser that supports custom elements and
scripting to display a progress bar.  This probably means you partially
right: Lynx, NCSA Mosaic and MacWeb cannot render a progress bar element.

-----Original Message-----
From: Ben Adida [mailto:ben at adida.net] 
Sent: Thursday, August 21, 2008 9:36 PM
To: Kristof Zelechovski
Cc: 'Dan Brickley'; 'Tab Atkins Jr.'; 'Bonner, Matt'; 'WHAT-WG'; 'Ian
Hickson'; hsivonen at iki.fi
Subject: Re: [whatwg] Creative Commons Rights Expression Language

Kristof Zelechovski wrote:
> If I understand it correctly, we do not have a problem with the colon as a
> namespace separator.  Our problem is that "a:x" sometimes means the same
> "b:x" and there is no reasonable way to make legacy browsers support this.

But... legacy browsers have no way to display a Progress Bar either, right?

RDFa does *not* affect how something is rendered. It just tells you what
portions of the page mean what exactly (this is a license, this is a
tag, etc...) So we're okay if legacy browsers don't understand it, they
can simply ignore it. In fact, even new browsers can ignore RDFa,
leaving the job to an extension. But of course, everyone is much better
off if RDFa can be validated in HTML/XHTML.


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