[whatwg] Quirks mode handling of rowspan="0"

[Boris Zbarsky]

On 9/3/12 2:31 AM, Jukka K. Korpela wrote:
> This was the case already in HTML 4.01

Yes, I know.

> Generally, attempts at defining "quirks mode" would mean making it an
> alternate mode and will not be successful due to the wide variation
> across browsers and versions. It's called "quirks" for a reason.

See http://dvcs.w3.org/hg/quirks-mode/raw-file/tip/Overview.html

The point is to enable new UAs to be written that can actually function 
on the web.  That means specifying quirks mode.

> Specifically, as some browsers already support rowspan="0" in quirks
> mode, and some don't, you cannot ensure backwards compatibility no
> matter how you define it.

This is not specific to quirks mode.  This happens any time there's lack 
of interop.  It's not a new situation.

> but it does not help to change it

Yes, it does: once all browsers agree, the barrier to entry for new 
entrants is lower because they just need to implement the behavior 
everyone already agrees on.

-Boris