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A comment on Semantics and the Web: An Awkward History. Parent comment

Re:Semantics and the Web: An Awkward History by pydry on Tuesday November 16, 2021 @04:28AM (#29238583)
I remember back when XHTML was in vogue (a long time ago now) that there was a blog on the web that advocated for it and somebody posted a comment with an errant character or an unclosed tag or something and overly strict parsing broke the blog on all browsers.

I thought that signaled the death knell of XHTML.

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Re:Semantics and the Web: An Awkward History by try_again on Tuesday November 16, 2021 @10:17AM (#29241445)
That's really just a failure of input sanitation or not properly escaping special characters or putting the comment in CDATA when constructing the XHTML. Basically that blog allowed an injection attack. Not XHTML's fault, the same software would have allowed any comment to do god knows what in HTML.
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