http://gwt-code-reviews.appspot.com/1725808/diff/7002/user/src/com/google/gwt/dom/client/DOMImplTrident.java File user/src/com/google/gwt/dom/client/DOMImplTrident.java (right):
http://gwt-code-reviews.appspot.com/1725808/diff/7002/user/src/com/google/gwt/dom/client/DOMImplTrident.java#newcode49 user/src/com/google/gwt/dom/client/DOMImplTrident.java:49: return (parent === child) || (parent.body && parent.body.contains(child)); After adding some tests that used Document as the parent, I had to add this condition and use document.body.contains instead. http://gwt-code-reviews.appspot.com/1725808/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
