file_doublewrappedcompartments.html (429B)
1 <html> 2 <head> 3 <script> 4 // We want to put an expando on the object, but we want this object 5 // to be wrapped in other compartments. This means that the expando 6 // must implement precreate, which happens (in general) for nodes. 7 // So we just do a cyclic reference to the document body. 8 window.expando = document.documentElement; 9 </script> 10 </head>