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List:       kde-bugs-dist
Subject:    [Bug 251373] HTML5: XMTML5 testcases fail
From:       Gérard Talbot  <browserbugs () gtalbot ! org>
Date:       2011-06-27 20:27:54
Message-ID: E1QbIPS-0007OJ-AI () bugs ! kde ! org
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https://bugs.kde.org/show_bug.cgi?id=251373


Gérard Talbot <browserbugs@gtalbot.org> changed:

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--- Comment #2 from Gérard Talbot <browserbugs gtalbot org>  2011-06-27 20:27:53 ---

>  Some of the XHTML5
> tests fails:
> 
> #2 Body element with link attribute (text does not get color of visited link
> after clicking)

http://samples.msdn.microsoft.com/ietestcenter/html5/xhtml/body_link.xhtml

There is no initial, default (user agent style sheet) CSS rule for :visited or
a:visited in Konqueror, that is after examining html4.css . So, this may not be
a Konqueror bug. The testcase assumes and presumes that the user agent style
sheet has and uses an initial, default (user agent style sheet) CSS rule for
:visited or a:visited. 

The result of Microsoft test here does not prove a flaw, a failure or an
incorrect implementation as far as rendering visited links in a color.

> #4 Colgroup element with valign attribute set to bottom
> #5 Colgroup element with valign attribute set to top

http://samples.msdn.microsoft.com/ietestcenter/html5/xhtml/colgroup_valign_bottom.xhtml

http://samples.msdn.microsoft.com/ietestcenter/html5/xhtml/colgroup_valign_top.xhtml

valign is a non-CSS presentational hint and a deprecated attribute. 
"The UA *_may_* choose to honor presentational attributes in an HTML source
document."
6.4.4 Precedence of non-CSS presentational hints
http://www.w3.org/TR/CSS21/cascade.html#preshint

The thing is valign would normally be mapped to CSS vertical-align property.
But, vertical-align does not apply to colgroup elements; it should apply only
to table cell elements and inline-level elements. 
http://www.w3.org/TR/CSS21/visudet.html#propdef-vertical-align

So, XHTML5 or not, I'd be surprised if this test pass in HTML 4.01 transitional
anyway.

Even Microsoft CSS 2.1 test suite contribution confirms this in 

http://test.csswg.org/suites/css2.1/20110323/html4/vertical-align-applies-to-005.htm

So, there is a contradiction here and there is a leniency provided in section
6.4.4 of CSS 2.1. 

FWIW, Firefox 5.0 fails those 2 Colgroup element with valign attribute tests...
and probably would fail those 2 same tests written in HTML 4.01 transitional.


> #6 Style inside comments
> #7 Image element with border in % (50% testcase fails)

http://samples.msdn.microsoft.com/ietestcenter/html5/xhtml/img_border_percent.xhtml

border expressed in percentage in CSS code is invalid:
http://test.csswg.org/suites/css2.1/latest/html4/border-width-013.htm

border attribute specified with a percentage value is extremely rare, is very
likely to be inconsistently rendered in mainstream browsers, border attribute
on image is deprecated.

For all reasons given before (leniency, precedence of non-CSS hints, etc), this
barely can be considered a flaw, even a minor flaw, in the border
implementation.


> #8 Object element with border in %

http://samples.msdn.microsoft.com/ietestcenter/html5/xhtml/object_border_perc.xhtml

Same reasons.

> #9 Obect element with border in pixels

This one has merits: border in pixels on HTML object element should be rendered
... but I can not silenced the fact that the testcase uses this code:

<div  valing="center">

.. which is invalid attribute specification.

regards, Gérard

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