<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=759621 --> <head> <meta charset="utf-8"> <title>Test for Bug 759621</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=759621">Mozilla Bug 759621</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 759621 **/ var l = document.getElementsByTagName("*"); l.namedItem = "pass"; is(l.namedItem, "pass", "Should be able to set expando shadowing a proto prop"); </script> </pre> </body> </html>