test_scroll_position_iframe.html

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Test Info:

Manifest: layout/generic/test/mochitest.toml

<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1305579

-->

<head>

  <meta charset="utf-8">

  <title>Test for Bug 1305579</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/paint_listener.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1305579">Mozilla Bug 1305579</a>

<p id="display"></p>

<style>

.off {

  display:none;

</style>

<script>

SimpleTest.waitForExplicitFinish();

function runtest() {

  var iframe = document.getElementById("iframe");

  iframe.contentDocument.scrollingElement.scrollTop = 50;

  iframe.classList.toggle("off");

  waitForAllPaintsFlushed(function() {

    iframe.classList.toggle("off");

    is(iframe.contentDocument.scrollingElement.scrollTop, 50, "scroll position restored");

    SimpleTest.finish();

});

</script>

<iframe onload="runtest()" id="iframe" class="" srcdoc="<p>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br>bla<br></p>"></iframe><br>

</body>

</html>