<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=359657 --> <head> <title>Test for Bug 359657</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=359657">Mozilla Bug 359657</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> SimpleTest.waitForExplicitFinish(); /** Test for Bug 359657 **/ function runTest() { var span = document.createElement("span"); $("test").insertBefore(span, $("test").firstChild); ok(true, "Reachability, we should get here without crashing"); is($("test").firstChild, span, "First child is correct"); SimpleTest.finish(); } </script> <div> <iframe src=""></iframe> <!-- Important: This test needs to run async at this point. The actual test is not crashing while running this test! --> <script type="text/javascript" src="data:text/javascript,runTest()"></script> </div> </pre> </body> </html>