<!DOCTYPE html>
<title>Should not crash on foreignObject under defs</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>test(()=>{})</script>
<div style="will-change: opacity; mix-blend-mode: exclusion;"></div>
<svg>
  <defs>
    <foreignObject width="100" height="100">
      <div style="will-change: opacity;">FAIL</div>
    </foreignObject>
  </defs>
</svg>
<div style="will-change: opacity;"></div>