[css-values] OK to have fragment-only URLs always refer to the host document?

[tabatkins]

I just wrote https://drafts.csswg.org/css-values/#local-urls to discharge the resolution we made at the SF f2f, and while writing it I ran into one bit that we hadn't actually discussed: what to do about fragment-only URLs in an external stylesheet. (The discussion we had at the f2f was just about URLs that would normally resolve to an element in the document, which implies the CSS is inline.)

I went ahead and defined that fragment-only URLs always refer to the host document, because it seems useful for SVG, and because CSS documents have no fragment semantics and don't look like they ever will. Is this ok?

[fantasai]

This was resolved today https://lists.w3.org/Archives/Public/www-style/2016Jun/0026.html and edited into the spec accordingly.