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niso-standards / cpld

Content Profile / Linked Document Standard
MIT License
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Use the XML syntax of HTML5 (XHTML) or not? #78

Closed RinkeHoekstra closed 2 years ago

RinkeHoekstra commented 2 years ago

XHTML is deprecated, but HTML5 still has an XML syntax that can be used for more reliable parsing. https://html.spec.whatwg.org/#the-xhtml-syntax

It is not exactly clear why the standard settled on the XML syntax; most likely because content processing systems routinely manipulate the content using XML libraries. Enforcing an XML compatible serialization of the HTML prevents surprises.

RinkeHoekstra commented 2 years ago

@bkasdorf raised the issue with respect to the XHTML standard from 1999. Sadly, the XML serialization of HTML5 still relies on that namespace.

RinkeHoekstra commented 2 years ago

https://github.com/whatwg/html/blob/main/FAQ.md#what-is-the-namespace-declaration

RinkeHoekstra commented 2 years ago

HTML it is