Added ajax error messages in the unit test suite because Safari was sometimes tossing...

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 0f27425..be989ea 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -340,7 +340,7 @@ jQuery.fn = jQuery.prototype = {
        },
 
        add: function( selector ) {
-               return this.pushStack( jQuery.merge( 
+               return !selector ? this : this.pushStack( jQuery.merge( 
                        this.get(),
                        selector.constructor == String ? 
                                jQuery( selector ).get() :
@@ -917,7 +917,8 @@ jQuery.extend({
        clean: function( elems, context ) {
                var ret = [];
                context = context || document;
-               if (!context.createElement) 
+               // !context.createElement fails in IE with an error but returns typeof 'object'
+               if (typeof context.createElement == 'undefined') 
                        context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
 
                jQuery.each(elems, function(i, elem){