<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=641477 --> <head> <title>Test for Bug 641477</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=641477">Mozilla Bug 641477</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 641477 **/ var didThrow = false; var e = document.createEvent("Event"); try { is(e.type, "", "Event type should be empty string before initialization"); document.dispatchEvent(e); } catch(ex) { didThrow = (ex.name == "InvalidStateError" && ex.code == DOMException.INVALID_STATE_ERR); } ok(didThrow, "Should have thrown InvalidStateError!"); </script> </pre> </body> </html>