Make sure that selected works in Safari on options in optgroups. Fixes #5701.

1 files changed, 8 insertions, 3 deletions

diff --git a/src/attributes.js b/src/attributes.js
index d3afa89ec..30b3205a1 100644
--- a/src/attributes.js
+++ b/src/attributes.js
@@ -261,12 +261,17 @@ jQuery.extend({
 		// Only do all the following if this is a node (faster for style)
 		if ( elem.nodeType === 1 ) {
 			// These attributes require special treatment
-			var special = rspecialurl.test( name );
+			var special = rspecialurl.test( name ), parent = elem.parentNode;
 
 			// Safari mis-reports the default selected property of a hidden option
 			// Accessing the parent's selectedIndex property fixes it
-			if ( name === "selected" && elem.parentNode ) {
-				elem.parentNode.selectedIndex;
+			if ( name === "selected" && parent ) {
+				parent.selectedIndex;
+
+				// Make sure that it also works with optgroups, see #5701
+				if ( parent.parentNode ) {
+					parent.parentNode.selectedIndex;
+				}
 			}
 
 			// If applicable, access the attribute via the DOM 0 way