<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=684671 --> <head> <title>Test for Bug 684671</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=684671">Mozilla Bug 684671</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 684671 **/ function f() {} document.onreadystatechange = f; is(document.onreadystatechange, f, "Document onreadystatechange should be settable"); window.onreadystatechange = f; is(window.onreadystatechange, f, "Window onreadystatechange should be settable"); document.documentElement.onreadystatechange = f; is(document.documentElement.onreadystatechange, f, "Element onreadystatechange should be settable"); var canSetReadyStateChange; try { XMLDocument.prototype.onreadystatechange = null; canSetReadyStateChange = true; } catch (e) { canSetReadyStateChange = false; } ok(canSetReadyStateChange, "This may break web pages"); </script> </pre> </body> </html>