291913 - Do not allow XHTML 1.1 to be parsed as HTML

Status: RESOLVED INVALID

(Core :: DOM: HTML Parser, enhancement)

Description

[Thomas Rutter]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050422 Firefox/1.0+
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050422 Firefox/1.0+

Firefox displays a (purportedly) XHTML 1.1 Website which has been served as
text/html, without issuing any warnings or errors.  The website is parsed with
the HTML parser as it would with XHTML 1.0 as defined in Appendix C of the XHTML
1.0 spec.

The XHTML 1.1 specification does not allow for XHTML 1.1 to be served as text/html.

I know it isn't Firefox's responsibility to enforce this, but it might be a good
opportunity to do so.

Should Firefox help enforce this by displaying an error or warning when
attempting to parse a document with a XHTML 1.1 doctype as HTML?

Reproducible: Always

Steps to Reproduce:
1. Load testcase (URL)
2. View page source
Actual Results:  
File is parsed by HTML parser, displays without error or warning

Expected Results:  
HTML parser should not parse file claiming to be XHTML 1.1

Comment 1

[Anne (:annevk)]

See the last sentence of the first paragraph here:
<http://lists.w3.org/Archives/Public/www-html/2000Sep/0024.html>