<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 100 100" preserveAspectRatio="none">
  <title>Testcase for mask that can't be resolved</title>
  <rect width="100%" height="100%" fill="red"/>
  <g mask="url(#foo)">
    <!-- Draw a line path with zero area -->
    <path stroke="lime" stroke-width="200%" d="M0,50L100,50"/>
  </g>
</svg>