<!DOCTYPE HTML> <html> <head> <title>Test for default action of WheelEvent</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <p id="display"></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> SimpleTest.waitForExplicitFinish(); SimpleTest.requestFlakyTimeout("untriaged"); SpecialPowers.pushPrefEnv({"set": [ ["mousewheel.system_scroll_override_on_root_content.enabled", false] ]}, runTest); var subWin = null; function runTest() { subWin = window.open("window_wheel_default_action.html", "_blank", "width=500,height=500,scrollbars=yes"); } function finish() { subWin.close(); SimpleTest.finish(); } </script> </pre> </body> </html>