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Test Info:

<!--
Any copyright is dedicated to the Public Domain.
-->
<!DOCTYPE html>
<html lang="en" class="reftest-wait">
<meta charset="utf-8">
<title>Make sure that large gradient backgrounds are painted even at extreme scroll positions</title>
<style>
html {
background: white;
overflow: hidden;
}
body {
margin: 0;
height: 204000px; /* = 255 * 800 */;
background-image: linear-gradient(black 0px, lime 2000px);
}
div {
height: 1000px;
background-color: red;
}
</style>
<div></div>
<script>
window.addEventListener("MozReftestInvalidate", function () {
document.documentElement.scrollTop = 210 * 800; // 168000 > 131072 == 2^17
document.documentElement.removeAttribute("class");
});
</script>