26195 2014-06-25 13:35:51 +0000 disallow comments in media queries in the "media" attribute 2014-09-29 16:40:03 +0000 1 1 1 Unclassified WHATWG HTML unspecified PC All RESOLVED WONTFIX https://www.w3.org/Bugs/Public/show_bug.cgi?id=26196 P2 normal Unsorted 1 mike ian ian mike contributor oldest_to_newest 108318 0 mike 2014-06-25 13:35:51 +0000 Please consider making the spec state that media queries in the "media" attribute must not contain CSS comments. (In other words, that authors must not use comments in media queries in the "media" attribute.) I can't think of any sane use cases for allowing CSS comments in there. UAs would still need to support parsing of "media" values that contain comments but conformance checkers would report them as invalid. 110786 1 ian 2014-08-29 21:06:36 +0000 If they work everywhere, what's the value of disallowing them? 112343 2 mike 2014-09-28 10:07:38 +0000 (In reply to Ian 'Hixie' Hickson from comment #1) > If they work everywhere, what's the value of disallowing them? The value is that there's no good reason for HTML attribute values to contain CSS comments, so just because HTML @media attribute parsers handle CSS comments, that doesn't mean we should implicitly encourage authors to use them. Postel's law and all that. We obviously have plenty of other examples in HTML where the document-conformance rules are stricter than the parsing rules. But I don't feel strongly about it at this point. Feel free to wontfix this. 112394 3 ian 2014-09-29 16:40:03 +0000 There's not really any good reason for media queries in general to have inline comments, but that's what the CSS specs allow. I think it's something we should leave up to the CSS side, rather than try to invent a new authoring syntax just for the media="" attribute.