This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
See the original message that prompted me to raise this bug: http://lists.w3.org/Archives/Public/public-html/2009Jan/0386.html Regarding that, I have since removed almost all of the formalisms that we previously in the document. For the description of the browsing-context-or-keyword datatype, see: http://dev.w3.org/html5/markup/datatypes.html#common.data.browsing-context-name-or-keyword I also have since added a prose description of the concept of "browsing context": http://dev.w3.org/html5/markup/terminology.html#context "A browsing context is an environment in which UAs present documents to users. A tab or window in a Web browser typically contains a browsing context, as does an iframe, or frame elements in a frameset." That description is essentially verbatim from the HTML5 spec.