<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Test for Bug 838692</title> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <script> function doTest() { var testContext = location.search.substring(1); try { var topsOpener = window.top.opener; window.open("file_iframe_sandbox_top_navigation_fail.html?" + testContext, "_top"); topsOpener.postMessage({ok: false, desc: unescape(testContext) + "top navigation should NOT be allowed by a document sandboxed without 'allow-top-navigation.'"}, "*"); } catch(error) { window.top.opener.postMessage({ok: true, desc: unescape(testContext) + "as expected error thrown during window.open(..., \"_top\")"}, "*"); window.top.close(); } } </script> <body onload="doTest()"> I am sandboxed with 'allow-scripts' </body> </html>