PASS: canGetDescriptor(targetWindow, 'DocumentFragment') should be 'false' and is.
PASS: canGetDescriptor(targetWindow, 'DocumentType') should be 'false' and is.
PASS: canGetDescriptor(targetWindow, 'Element') should be 'false' and is.
-PASS: canGetDescriptor(targetWindow, 'Entity') should be 'false' and is.
PASS: canGetDescriptor(targetWindow, 'EntityReference') should be 'false' and is.
PASS: canGetDescriptor(targetWindow, 'EvalError') should be 'false' and is.
PASS: canGetDescriptor(targetWindow, 'Event') should be 'false' and is.