[e] (0) Fix example that didn't make much sense in <map> section...
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@8650 340c8d12-0b0e-0410-8428-c7bf67bfef74
[e] (0) Add a reference to DOM for XMLDocument
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=25922
Affected topics: DOM APIs

git-svn-id: http://svn.whatwg.org/webapps@8651 340c8d12-0b0e-0410-8428-c7bf67bfef74
[giow] (3) Turns out window.opener is set to all kinds of crazy things and we shouldn't fire TypeError for them
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=25917
Affected topics: DOM APIs

git-svn-id: http://svn.whatwg.org/webapps@8652 340c8d12-0b0e-0410-8428-c7bf67bfef74