264994 - Address and Heading can contain block elements

Status: RESOLVED INVALID

(Core :: DOM: HTML Parser, defect)

Description

[Ivan Sagalaev]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20041006 Firefox/0.10.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20041006 Firefox/0.10.1

Both HTML Strict DTD and XHTML 1.0 Strict DTD say that <address> and (heading)
could contain only inline elements. However Gecko successfully allows:

- <p> and <ul> inside <address> and <h1> in XHTML
- <p> inside <address> and <p>, <ul> inside <h1> in HTML

Funny it doesn't allow <ul> to be inside <address> in HTML.

Side note: In fact, for HTML any behavior would be technically approptiate due
to lack of specified error handling but still current behavior doesn't seem logical.

Testcases follow.

P.S. Hope I guessed the component right :-)

Reproducible: Always
Steps to Reproduce:

Comment 1

[Ivan Sagalaev]

Attachment: HTML Testcase

Comment 2

[Ivan Sagalaev]

Attachment: XHTML Testcase

Comment 3

[Boris Zbarsky [:bzbarsky]]

> Both HTML Strict DTD and XHTML 1.0 Strict DTD say

Gecko is not a validating parser.  So for your XHTML testcase the behavior is
entirely correct.  For the tag-soup testcase, any behavior is valid, as you
note; our behavior is chosen for compat with existing sites while still
enforcing a modicum of the HTML containment rules.