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chromium/third_party/blink/web_tests/fast/encoding/misplaced-xml-declaration.html 

 <?xml version="1.0" encoding="koi8-r"?>
<html>
<body>
Should be your browser default encoding: 
<script>
  if (window.testRunner)
    testRunner.dumpAsText();
  document.write(document.characterSet)
</script>
</body>