<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=664737 --> <head> <meta charset="utf-8"> <title>Test for Bug 664737</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=664737">Mozilla Bug 664737</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 664737 **/ function isUndefined(name) { try { var rv = history[name]; is(rv, undefined, "No value found for history." + name); } catch (e) { ok(false, "Accessing history." + name + " threw: " + e); } } isUndefined("current"); isUndefined("previous"); isUndefined("next"); </script> </pre> </body> </html>