chromium/third_party/blink/web_tests/external/wpt/x-frame-options/get-decode-split.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>X-Frame-Options headers use the get, decode, and split algorithm</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/helper.sub.js"></script>

<body>
<script>
"use strict";

xfo_simple_tests({
  headerValue: `,SAMEORIGIN,,DENY,`,
  sameOriginAllowed: false,
  crossOriginAllowed: false
});

xfo_simple_tests({
  headerValue: `  SAMEORIGIN,    DENY`,
  sameOriginAllowed: false,
  crossOriginAllowed: false
});
</script>