<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1464374--> <head> <meta charset="utf-8"> <title>Test for Bug 1464374</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=1464374">Mozilla Bug 1464374</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> </pre> <iframe></iframe> <script type="application/javascript"> /* global TestInterfaceJS */ /** Test for Bug 1464374 **/ SimpleTest.waitForExplicitFinish(); function doTest() { var frame = frames[0]; var obj = new frame.TestInterfaceJS(); var ex; try { TestInterfaceJS.prototype.testThrowTypeError.call(obj); } catch (e) { ex = e; } ok(ex, "Should have an exception"); SimpleTest.finish(); } SpecialPowers.pushPrefEnv({set: [["dom.expose_test_interfaces", true]]}, doTest); </script> </body> </html>