[Caja] Issue 1289 in google-caja: Parent-most DOM object should have getElementById

[google-caja]

Status: New
Owner: metaweta
Labels: Type-Defect Priority-High jQuery
New issue 1289 by metaweta: Parent-most DOM object should have  
getElementById
http://code.google.com/p/google-caja/issues/detail?id=1289

What steps will reproduce the problem?

for (d=document.body; d.parentNode; d=d.parentNode){}
d.getElementById;

What is the expected output? What do you see instead?
document.body has no parent and has no getElementById.