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<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>backdrop-filter: Update filter value</title>
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="match" href="backdrop-filter-update-ref.html">
<p>Expected: A green box</p>
<div id="colorbox"></div>
<div id="filterbox"></div>
<style>
div {
position: absolute;
width: 100px;
height: 100px;
left: 10px;
top: 50px;
}
#colorbox {
background: #ff7fff;
}
#filterbox {
backdrop-filter: invert(0);
}
</style>
<script>
window.onload = function(e) {
requestAnimationFrame(() => {
requestAnimationFrame(() => {
let filt = document.getElementById("filterbox");
filt.style.backdropFilter = "invert(1)";
document.documentElement.classList.remove('reftest-wait');
});
});
}
</script>
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