<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1240471 --> <head> <meta charset="utf-8"> <title>Test for Bug 1240471</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> <script type="application/javascript"> SimpleTest.waitForExplicitFinish(); let path = location.pathname.substring(0, location.pathname.lastIndexOf('/')) + '/file_youtube_flash_embed.html'; onmessage = function(e) { let msg = JSON.parse(e.data); if (msg.fn == "finish") { SimpleTest.finish(); return; } self[msg.fn].apply(null, msg.args); } function onLoad() { SpecialPowers.pushPrefEnv({ "set": [["full-screen-api.unprefix.enabled", true]] }, function() { // The test file must be loaded into youtube.com domain // because it needs unprivileged access to fullscreenEnabled. ifr.src = "https://mochitest.youtube.com" + path; }); } </script> </head> <body onload="onLoad()"> <iframe id="ifr" allowfullscreen></iframe> </body> </html>