<DOCTYPE HTML> <html> <!-- Test for Mixed Content Blocker target="_top" frame navigation https://bugzilla.mozilla.org/show_bug.cgi?id=902350 --> <head> <meta charset="utf-8"> <title>Test for Bug 902350</title> </head> <body> <div id="framediv"> <iframe src="https://example.com/tests/dom/base/test/file_bug902350_frame.html" id="testing_frame"></iframe> </div> </body> </html>