<html xmlns="http://www.w3.org/1999/xhtml"> <head> <style> #bar { -moz-binding: url("#binding"); } </style> <bindings xmlns="http://www.mozilla.org/xbl"> <binding id="binding"> <implementation> <property name="prop" readonly="true" exposeToUntrustedContent="true" onget="return 2;"/> </implementation> </binding> </bindings> </head> <!-- Use a timeout so that we get bfcached --> <body onload="setTimeout(window.opener.runTest, 100)"> <div id="bar"></div> </body> </html>