Does it allow the rt element under the rtc element?

Hi,

During implementing ruby related element parser to Gecko, I found that:
- The description of the rt element allows the rt element under the rtc
element.
- The parser algorithm doesn't allow the rt element under the rtc element.

Which is collect?

WebKit allows it.
http://trac.webkit.org/changeset/167437

I filed a bug at:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=26074

Best regards,
Yuki Sekiguchi

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