// Firefox sometimes assigns relatedTarget a XUL element
// which we cannot access the parentNode property of
+ // Chrome does something similar, the parentNode property
+ // can be accessed but is null.
try {
// Traverse up the tree
while ( parent && parent !== this ) {
parent = parent.parentNode;
}
- if ( parent !== this ) {
+ if ( parent && parent !== this ) {
// set the correct event type
event.type = event.data;