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[Bug 12935] New: <rt> should not auto-close <rtc>

From: <bugzilla@jessica.w3.org>
Date: Fri, 10 Jun 2011 17:23:51 +0000
To: public-html-bugzilla@w3.org
Message-ID: <bug-12935-2486@http.www.w3.org/Bugs/Public/>

           Summary: <rt> should not auto-close <rtc>
           Product: HTML WG
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: bzbarsky@mit.edu
         QAContact: public-html-bugzilla@w3.org
                CC: mike@w3.org, public-html-wg-issue-tracking@w3.org,

We're implementing ruby support in Gecko, and discovered that the HTML5 parsing
algorithm requires that <rt> close <rtc>.

This behavior does not match the pre-HTML5-parser Gecko behavior, the
pre-HTML5-parser WebKit behavior, Presto, or IE9+.

It does match IE8-.

Given that IE has already changed its behavior here once, I see no reason to
require them to change it again to what is arguably a less-useful behavior.  So
I think what we should do is to remove the <rt> magic from the spec entirely,
simplifying the spec and making it compatible with what IE9, Gecko 1.9.2,
Presto, and pre-HTML-parser WebKit.

There will still be the issue that it's not safe for authors to actually use
<rtc> until IE8- marketshare becomes negligible, but I would expect the
timeframe for this to be on par with the timeframe for HTML5 getting anywhere
close to REC if not shorter.  In the meantime, there is clearly not a serious
web compat issue with the proposed change, since IE9, Gecko 1.9.2, Presto, and
pretty recent WebKit all have/had that behavior.  So there should be nothing
stopping Gecko and WebKit from changing away from their current behavior.

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Received on Friday, 10 June 2011 17:23:53 UTC

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