<!doctype html>
<meta charset="utf-8">
<title>Invalid backdrop-filter doesn't cause element to disappear</title>
<link rel="author" title="Mozilla" href="https://mozilla.org">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
<link rel="help" href="https://drafts.fxtf.org/filter-effects-1/#typedef-filter-value-list">
<link rel="match" href="filter-invalid-ref.html">
<style>
div, rect {
  width: 100px;
  height: 100px;
  backdrop-filter: url(#not-found);
}
div {
  background-color: blue;
}
rect {
  fill: purple;
}
</style>
<div></div>
<svg>
  <rect></rect>
</svg>
