Re: [webcomponents] [Custom]: "are" custom element names ASCII characters, or MUST they be ASCII characters? (bugzilla: 22056) (#239)

Per the HTML parser a tag name has to start with `[a-z][A-Z]`. However, once you get to the "tag name state", anything goes, except for ASCII whitespace, "/", ">", and U+0000. 

I would be okay with requiring ASCII lowercase (with at least one hyphen) as a start and then go from there. I would also be fine with allowing more, but I don't think we should do anything that requires changing the rule that it starts with an ASCII alpha.

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Received on Tuesday, 1 March 2016 09:48:55 UTC