154355 - the style element doesn't load stylesheets with an @import rule using " instead of " in XHTML 1.0 documents

Status: VERIFIED INVALID

(Core :: DOM: HTML Parser, defect)

Description

[Dominique Hazaël-Massieux]

The XHTML 1.0 specification says:

"In XHTML, the script and style elements are declared as having #PCDATA content.
As a result, < and & will be treated as the start of markup, and entities such
as &lt; and &amp; will be recognized as entity references by the XML processor
to < and & respectively."

Hence, &quot; in a style element should be treated as ". But when using the
@import rule with the URI of the stylesheet between two &quot; (like in this
page), Gecko doesn't load it correctly:

@import &quot;/scripts/style-header.css&quot; ;
@import &quot;/scripts/style.css&quot; ;

Note that the W3C CSS Validator detects and loads correctly the stylesheets.

Comment 1

[Nik Borton]

Seems to WFM, Moz 1.0/Win2k.

Comment 2

[Boris Zbarsky [:bzbarsky]]

If you serve the page as text/xml or application/xhtml+xml it will be parsed by
the XML parser and the behavior will be exactly as the XHTML spec mandates.

As it is, it is parsed by the HTML parser instead. Not sure how that language
applies to non-XML parsers given XHTML data, if at all.

Comment 3

[Christopher Hoess (gone)]

Ha, this is a tricky one. In HTML 4.01, the content model of <style> is CDATA, so 
entities aren't replaced. Our behavior is correct. INVALID.

Comment 4

[Dominique Hazaël-Massieux]

Not true, this is an XHTML 1.0 document, not an HTML 4.01. Be it served as
text/html or text/xml doesn't change the fact it's an XHTML document (note that
style being a PCDATA section is shown as being an incompatibility between the 2
versions in XHTML 1.0 spec).

Comment 5

[harishd]

Sorry, our html parser is not designed for xhtml documents. So, if you want the
correct behavior then please serve your document with the appropriate mime type.

INVALID

Comment 6

[Boris Zbarsky [:bzbarsky]]

In particular, the XHTML spec says:

  However, XHTML Documents which follow the guidelines set forth in Appendix C,
  "HTML Compatibility Guidelines" may be labeled with the Internet Media Type
  "text/html", as they are compatible with most HTML browsers. [1]

Appendix C, section 4 says:

  Use external style sheets if your style sheet uses < or & or ]]> or --. [2]

[1] http://www.w3.org/TR/xhtml1/#media
[2] http://www.w3.org/TR/xhtml1/#guidelines

So your document in fact does not follow the "compatibility with HTML"
guidelines and should not be sent as text/html