Re: ZIP-based packages and URI references into them ODF proposal

Ian Hickson wrote:
> ...
> HTML5 does not provide for a way for groups other than the working group 
> to invent new elements, yes. Historically, such attempts have proved 
> somewhat disastrous -- <marquee>, <blink>, <spacer>, etc. In fact I am 
> hard-pressed to come up with any good example of an extension in the 
> element space that was benficial to the Web and wasn't developed by a 
> working group.
> ...

Note that HTML4 didn't allow that either, but the extensions happened 
anyway.

The interesting issue to me is not *who* is making extensions (that's a 
separate issue), but how hard it is do so. If any change requires 
changing core parts of HTML5 (and with it implementations of parsers and 
serializers), that's something I personally would consider a major failure.

> ...

BR, Julian