Fix #11621, $(document).trigger() must bubble to window.

src/event.js

@@ -315,14 +315,13 @@ jQuery.event = {
 
 			bubbleType = special.delegateType || type;
 			cur = rfocusMorph.test( bubbleType + type ) ? elem : elem.parentNode;
-			old = null;
-			for ( ; cur; cur = cur.parentNode ) {
+			for ( old = elem; cur; cur = cur.parentNode ) {
 				eventPath.push([ cur, bubbleType ]);
 				old = cur;
 			}
 
 			// Only add window if we got to document (e.g., not plain obj or detached DOM)
-			if ( old && old === elem.ownerDocument ) {
+			if ( old === (elem.ownerDocument || document) ) {
 				eventPath.push([ old.defaultView || old.parentWindow || window, bubbleType ]);
 			}
 		}
@@ -782,7 +781,7 @@ if ( !jQuery.support.submitBubbles ) {
 			});
 			// return undefined since we don't need an event listener
 		},
-		
+
 		postDispatch: function( event ) {
 			// If form was submitted by the user, bubble the event up the tree
 			if ( event._submit_bubble ) {

test/unit/event.js

@@ -928,7 +928,7 @@ test("trigger() shortcuts", function() {
 });
 
 test("trigger() bubbling", function() {
-	expect(17);
+	expect(18);
 
 	var win = 0, doc = 0, html = 0, body = 0, main = 0, ap = 0;
 
@@ -964,6 +964,9 @@ test("trigger() bubbling", function() {
 	equal( main, 1, "ap bubble" );
 	equal( ap, 1, "ap bubble" );
 
+	jQuery( document ).trigger("click");
+	equal( win, 4, "doc bubble" );
+
 	// manually clean up events from elements outside the fixture
 	jQuery(document).unbind("click");
 	jQuery("html, body, #qunit-fixture").unbind("click");