earlier replies
Replying to @larsr_h
XML namespaces were a bad idea, and trying to cast HTML into XML turned out to be a bad idea, too. Trust me, I was there when it happened
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Among others, the requirement for well-formedness of the whole document made it really hard to have a valid page from 2 sources in any setting that was a little more complex. Especially third party providers can easily make documents break easily.
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Replying to @larsr_h @Argorak
One of the major problems is that the prefixes to refer to elements from other namespaces inevitably end up being part of attribute *values*, which means they now need to be transformed when content is moved or copied. This means a text editor is no longer a good tool to edit XML

Jun 28, 2020 · 6:31 PM UTC
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