<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=563487 --> <head> <!-- Put this before the mochi* stuff, since that adds various listeners --> <script> var exception = null; try { window.removeEventListener("foo", function() {}); } catch (e) { exception = e; } </script> <title>Test for Bug 563487</title> <script 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=563487">Mozilla Bug 563487</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 563487 **/ is(exception, null, "removeEventListener threw"); </script> </pre> </body> </html>