<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1186774 --> <head> <meta charset="utf-8"> <title>Test for Bug 1186774</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"> /** Test for Bug 1186774 **/ var child; function runTest() { child = window.open("data:text/html,<div style='height: 9000px;'></div>", "", "width=100,height=100"); child.onload = function() { setTimeout(function() { child.scrollTo(0, 0); child.history.pushState({}, "initial"); child.scrollTo(0, 3000); child.history.pushState({}, "scrolled"); child.scrollTo(0, 6000); child.history.back(); }); } child.onpopstate = function() { is(Math.round(child.scrollY), 6000, "Shouldn't have scrolled before popstate"); child.close(); SimpleTest.finish(); } } SimpleTest.waitForExplicitFinish(); addLoadEvent(runTest); </script> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1186774">Mozilla Bug 1186774</a> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> </pre> </body> </html>