<!doctype html>
<html>
<title>Clip Path: invalidate composited clip-path via SVG</title>
<link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org">

<style>
  body {
    margin: 0;
  }
  div {
    height: 500px;
    background: black;
    clip-path: url(#clip);
    will-change: transform;
  }
  svg {
    width: 0;
    height: 0;
  }
</style>

<div></div>

<svg viewBox="0 0 1 1">
  <clipPath id="clip" clipPathUnits="objectBoundingBox">
    <polygon points="0,0 0.5,1 1,0" />
  </clipPath>