[cssom] CSSRule.parentRule and CSSRule.parentStyleSheet should return a "CSSRule?"

• From: Boris Zbarsky <bzbarsky@MIT.EDU>
• Date: Fri, 31 Aug 2012 17:19:08 -0400
• To: www-style@w3.org
• Message-ID: <50412A4C.7000501@mit.edu>

In particular, it can return null in various cases; lots of rules don't 
have a parent rule, and in some cases rules are not associated with a 
stylesheet.

-Boris

Received on Friday, 31 August 2012 21:19:36 UTC