gecko-dev/layout/base/tests/test_bug842853-2.html

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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=842853
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 842853</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script type="application/javascript">
/** Test for Bug 842853 **/
SimpleTest.waitForExplicitFinish();
async function verifyAfterLoad() {
var e = document.getElementsByTagName('iframe')[0];
var win = e.contentWindow;
if (win.location.hash != '') {
const resolution = await SpecialPowers.spawn(window.top, [], () => {
return SpecialPowers.getDOMWindowUtils(content.window).getResolution();
});
// Allow a half pixel difference if the top document's resolution is lower
// than 1.0 because the scroll position is aligned with screen pixels
// instead of CSS pixels.
const tolerance = resolution < 1.0 ? 0.5 : 0.0;
isfuzzy(win.scrollY, 500, tolerance);
SimpleTest.finish();
return;
}
}
function runTest() {
var e = document.getElementsByTagName('iframe')[0];
var win = e.contentWindow;
if (win.location.hash != '') {
return;
}
win.location.hash='#anchor'
win.scrollTo(0,500);
e.setAttribute("onload","verifyAfterLoad()");
win.location.reload()
}
</script>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=842853">Mozilla Bug 842853</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
<iframe src="file_bug842853.html"></iframe>
<script>
</script>
</body>
</html>