chromium/third_party/blink/web_tests/svg/custom/zero-path-square-cap-rendering.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <path d='M50,50 z' stroke='green' stroke-width='100' stroke-linecap='square'/>
</svg>