<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<!-- This tests some filter placement oddities caused by rounding
(https://bugs.webkit.org/show_bug.cgi?id=73643).
When opened, the test should not show any red outlines around the boxes. -->
<defs>
  <g id="paths">
    <path d="M10 10 h20 v20 h-20 v-20 m1 1 v18 h18 v-18 h-18"/>
    <rect x="19" y="19" width="2" height="2" />
    <rect x="5.51" y="0.51" width="2" height="32.3" fill="white"/>
    <rect x="35.4" y="0.51" width="2" height="32.3" fill="white"/>
  </g>
</defs>
<mask id="mask">
<use xlink:href="#paths" fill="white" x="60" />
</mask>

<clipPath id="clipper">
  <path d="M40 10 h20 v20 h-20 v-20 m1 1 v18 h18 v-18 h-18"/>
  <rect x="49" y="19" width="2" height="2" />
  <rect x="35.51" y="0.51" width="2" height="32.3" />
  <rect x="65.4" y="0.51" width="2" height="32.3" />
</clipPath>

<use xlink:href="#paths" fill="green" />
<g clip-path="url(#clipper)">
  <rect fill="red" x="38" y="8" width="24" height="24" />
  <use xlink:href="#paths" fill="green" x="30" />
</g>
<g mask="url(#mask)">
  <rect fill="red" x="68" y="8" width="24" height="24" />
  <use xlink:href="#paths" fill="green" x="60" />
</g>
</svg>