We removed deleteExpando after 1.4.2, for some reason. This caused problems with...

diff --git a/src/support.js b/src/support.js
index c2ffa45..b9c10c7 100644 (file)
--- a/src/support.js
+++ b/src/support.js
@@ -61,6 +61,7 @@
                optSelected: opt.selected,
 
                // Will be defined later
+               deleteExpando: true,
                optDisabled: false,
                checkClone: false,
                scriptEval: false,
@@ -91,6 +92,15 @@
                delete window[ id ];
        }
 
+       // Test to see if it's possible to delete an expando from an element
+       // Fails in Internet Explorer
+       try {
+               delete script.test;
+
+       } catch(e) {
+               jQuery.support.deleteExpando = false;
+       }
+
        root.removeChild( script );
 
        if ( div.attachEvent && div.fireEvent ) {

diff --git a/test/unit/data.js b/test/unit/data.js
index 81f5e61..b0c9f3f 100644 (file)
--- a/test/unit/data.js
+++ b/test/unit/data.js
@@ -284,11 +284,16 @@ test(".data(Object)", function() {
 });
 
 test("jQuery.removeData", function() {
-       expect(5);
+       expect(7);
        var div = jQuery("#foo")[0];
        jQuery.data(div, "test", "testing");
        jQuery.removeData(div, "test");
        equals( jQuery.data(div, "test"), undefined, "Check removal of data" );
+
+       jQuery.data(div, "test2", "testing");
+       jQuery.removeData( div );
+       ok( !jQuery.data(div, "test2"), "Make sure that the data property no longer exists." );
+       ok( !div[ jQuery.expando ], "Make sure the expando no longer exists, as well." );
        
        var obj = {};
        jQuery.data(obj, "test", "testing");