> XHTML was not "dead on arrival"; that is some seriously fabricated FUD
Are you talking about XHTML in general, or XHTML 2 specifically? They're not the same thing. I was talking about XHTML 2 specifically.
> It had its own mime type to differentiate itself from HTML
XHTML 2 did not have its own MIME type to differentiate itself from XHTML 1. This was precisely the problem, because it used the same MIME type, same namespace, and same localnames to mean different things from XHTML 1.
> today we would have 100% well-formed XHTML.
We can have a long discussion about XHTML 1 and whether it would have seen better uptake with better support. I will only note that all browsers support XHTML 1, with the XML serialization, and have for years. And similar for HTML5 with its XML serialization. Yet neither one has any uptake...
I should also note that your "browser vendors" lumping-in is a bit weird. The only browser vendor that did not support XHTML was IE (admittedly a large fraction of the market, which made deploying XHTML hard). But you make it sound like there was some conspiracy of browser vendors to ignore XHTML, when in reality all of them except Microsoft implemented it fairly quickly.
Are you talking about XHTML in general, or XHTML 2 specifically? They're not the same thing. I was talking about XHTML 2 specifically.
> It had its own mime type to differentiate itself from HTML
XHTML 2 did not have its own MIME type to differentiate itself from XHTML 1. This was precisely the problem, because it used the same MIME type, same namespace, and same localnames to mean different things from XHTML 1.
> today we would have 100% well-formed XHTML.
We can have a long discussion about XHTML 1 and whether it would have seen better uptake with better support. I will only note that all browsers support XHTML 1, with the XML serialization, and have for years. And similar for HTML5 with its XML serialization. Yet neither one has any uptake...
I should also note that your "browser vendors" lumping-in is a bit weird. The only browser vendor that did not support XHTML was IE (admittedly a large fraction of the market, which made deploying XHTML hard). But you make it sound like there was some conspiracy of browser vendors to ignore XHTML, when in reality all of them except Microsoft implemented it fairly quickly.