748683 - font-family lists that include keywords are not always flagged as invalid

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, defect)

Description

[John Daggett (:jtd)]

Attachment: testcase, test various keyword and generic combinations

This will cause a parse error:

  font-family: inherit, sans-serif;

This won't:

  font-family: sans-serif, initial;

Both should cause a parse error.

See discussion here:
http://lists.w3.org/Archives/Public/www-style/2012Apr/0638.html

Same should be true for the reserved keywords 'default' and 'initial'.

Comment 1

[John Daggett (:jtd)]

Hmm, this is even trickier than I thought.  The spec only disallows unquoted use of 'inherit', 'default', etc. when they match a complete name, there's nothing that requires quoting within a family name formed from multiple space-separated idents.

font-family: inherit sans-serif, cursive;
Firefox: invalid  Chrome: invalid

font-family: sans-serif inherit, cursive;
Firefox: parses  Chrome: invalid

Substitute 'initial' for inherit and Chrome treats both rules as invalid.  But substitute 'default' and both rules parse.  Firefox parses all of these.

Comment 2

[John Daggett (:jtd)]

Note: the patch on bug 605231 should also fix this bug.

Comment 3

[John Daggett (:jtd)]

Verified fixed by bug 605231.

Tested with:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:21.0) Gecko/20130117 Firefox/21.0