diff --git a/src/event.js b/src/event.js
index 2b05d9a64..fc43ed1ae 100644
--- a/src/event.js
+++ b/src/event.js
@@ -717,11 +717,13 @@ jQuery.each({
selector = handleObj.selector,
oldType, ret;
+ // NB: No relatedTarget if the mouse left/entered the browser window
if ( selector && related ) {
// Delegated event; find the real relatedTarget
related = jQuery( related ).closest( selector )[0];
}
- if ( !related || related !== target && !jQuery.contains( target, related ) ) {
+ // For mouseover/out, contains isn't needed; handle() already determined it's the right target
+ if ( !related || handleObj.origType === event.type || (related !== target && !jQuery.contains( target, related )) ) {
oldType = event.type;
event.type = handleObj.origType;
ret = handleObj.handler.apply( this, arguments );
diff --git a/test/hovertest.html b/test/hovertest.html
index 2c7267408..4c101ec00 100644
--- a/test/hovertest.html
+++ b/test/hovertest.html
@@ -1,7 +1,7 @@
Hover tests
-
+