2 files changed, 28 insertions, 5 deletions
diff --git a/js/vendor/jquery/src/attributes/prop.js b/js/vendor/jquery/src/attributes/prop.js
index da7bc1e86..e127bb08f 100644
--- a/js/vendor/jquery/src/attributes/prop.js
+++ b/js/vendor/jquery/src/attributes/prop.js
@@ -79,6 +79,12 @@ jQuery.extend( {
 	}
 } );
 
+// Support: IE <=11 only
+// Accessing the selectedIndex property
+// forces the browser to respect setting selected
+// on the option
+// The getter ensures a default option is selected
+// when in an optgroup
 if ( !support.optSelected ) {
 	jQuery.propHooks.selected = {
 		get: function( elem ) {
@@ -87,6 +93,16 @@ if ( !support.optSelected ) {
 				parent.parentNode.selectedIndex;
 			}
 			return null;
+		},
+		set: function( elem ) {
+			var parent = elem.parentNode;
+			if ( parent ) {
+				parent.selectedIndex;
+
+				if ( parent.parentNode ) {
+					parent.parentNode.selectedIndex;
+				}
+			}
 		}
 	};
 }
diff --git a/js/vendor/jquery/src/attributes/val.js b/js/vendor/jquery/src/attributes/val.js
index 9999d985b..1fa91713d 100644
--- a/js/vendor/jquery/src/attributes/val.js
+++ b/js/vendor/jquery/src/attributes/val.js
@@ -4,7 +4,8 @@ define( [
 	"../core/init"
 ], function( jQuery, support ) {
 
-var rreturn = /\r/g;
+var rreturn = /\r/g,
+	rspaces = /[\x20\t\r\n\f]+/g;
 
 jQuery.fn.extend( {
 	val: function( value ) {
@@ -80,9 +81,15 @@ jQuery.extend( {
 		option: {
 			get: function( elem ) {
 
-				// Support: IE<11
-				// option.value not trimmed (#14858)
-				return jQuery.trim( elem.value );
+				var val = jQuery.find.attr( elem, "value" );
+				return val != null ?
+					val :
+
+					// Support: IE10-11+
+					// option.text throws exceptions (#14686, #14858)
+					// Strip and collapse whitespace
+					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
+					jQuery.trim( jQuery.text( elem ) ).replace( rspaces, " " );
 			}
 		},
 		select: {
@@ -135,7 +142,7 @@ jQuery.extend( {
 				while ( i-- ) {
 					option = options[ i ];
 					if ( option.selected =
-							jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
+						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
 					) {
 						optionSet = true;
 					}