<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=348497 --> <head> <title>Test for Bug 348497</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=348497">Mozilla Bug 348497</a> <p id="display"></p> <div id="content"> This page should not crash Mozilla<br> <iframe id="testIframe"></iframe> </div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Bug 348497 **/ function doe() { document.getElementById("testIframe").style.display = "block"; document.getElementById("testIframe").contentDocument.designMode = "on"; } SimpleTest.waitForExplicitFinish(); addLoadEvent(doe); addLoadEvent(function() { ok(true, "enabling designmode on an iframe onload does not crash Mozilla"); }); addLoadEvent(SimpleTest.finish); </script> </pre> </body> </html>