<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1177914 --> <head> <title>Test for Bug 1177914</title> <script type="text/javascript" src="/MochiKit/MochiKit.js"></script> <script type="text/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=1177914">Mozilla Bug 1177914</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> var thrownException = false; var shadowRoot = document.createElement('a').createShadowRoot(); try { document.importNode(shadowRoot); } catch(err) { thrownException = err; } ok(thrownException !== false, "An exception should've been thrown"); is(thrownException.name, "NotSupportedError", "A NotSupportedError exception should've been thrown"); </script> </pre> </body> </html>