Fixed #1781 for warnings created on load by FF javascript.options.strict == true.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/fx.js b/src/fx.js
index c613f938d..fb564f07c 100644
--- a/src/fx.js
+++ b/src/fx.js
@@ -181,7 +181,7 @@ jQuery.fn.extend({
 
 var queue = function( elem, type, array ) {
 	if ( !elem )
-		return;
+		return undefined;
 
 	type = type || "fx";
 
@@ -418,4 +418,4 @@ jQuery.fx.step = {
 	_default: function(fx){
 		fx.elem.style[ fx.prop ] = fx.now + fx.unit;
 	}
-};
\ No newline at end of file
+};