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chromium/third_party/blink/web_tests/external/wpt/html/semantics/embedded-content/the-iframe-element/support/document-with-embedded-svg.html 

<!doctype html>
<body>
<script>
["embed", "frame", "iframe", "object"].forEach(name => {
  const frame = document.body.appendChild(document.createElement(name));
  const attr = name !== "object" ? "src" : "data";
  frame[attr] = "svg.svg";
});
</script>