<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>test bug 1583110</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" href="/tests/SimpleTest/test.css"/> <script> SimpleTest.waitForExplicitFinish(); var bc = new BroadcastChannel("bug1583110"); var pageshowCount = 0; bc.onmessage = function(event) { ok(event.data.type == "pageshow"); ++pageshowCount; if (pageshowCount == 1) { bc.postMessage("loadnext"); } else if (pageshowCount == 2) { bc.postMessage("back"); } else { ok(event.data.persisted, "Should have persisted the first page"); bc.close(); SimpleTest.finish(); } } function test() { window.open("file_bug1583110.html", "", "noopener"); } </script> </head> <body onload="test()"> <p id="display"></p> <div id="content" style="display: none"></div> <pre id="test"></pre> </body> </html>