diff --git a/tests/unit/draggable/draggable_core.js b/tests/unit/draggable/draggable_core.js
index b8ea199305..c9cdde2606 100644
--- a/tests/unit/draggable/draggable_core.js
+++ b/tests/unit/draggable/draggable_core.js
@@ -224,11 +224,15 @@ test( "#9379: Draggable: position bug in scrollable div", function() {
test( "#5727: draggable from iframe" , function() {
expect( 1 );
- var iframe = $( "" ).appendTo( "#qunit-fixture" ),
- iframeBody = iframe.contents().find( "body" ).append(
- "Relative
"
- ),
- draggable1 = iframeBody.find( "#iframe-draggable-1" );
+ var iframeBody, draggable1,
+ iframe = $( "" ).appendTo( "#qunit-fixture" ),
+ iframeDoc = ( iframe[ 0 ].contentWindow || iframe[ 0 ].contentDocument ).document;
+
+ iframeDoc.write( "" );
+ iframeDoc.close();
+
+ iframeBody = $( iframeDoc.body ).append( "" );
+ draggable1 = iframeBody.find( "div" );
draggable1.draggable();