justifyfull-selection-containing-non-editable-div-and-everything-styled-white-space-break-space.html

<!DOCTYPE html>
<html>
<head>
    <style>
        * {
            white-space: break-spaces ! important;
        }
    </style>
    <script>
      window.addEventListener('load', () => {
        document.documentElement.contentEditable = true
        document.execCommand('selectAll', false, null)
        document.execCommand('justifyFull', false, null)
      })
    </script>
</head>
<div contenteditable='false'></div>
</html>

chromium/third_party/blink/web_tests/external/wpt/editing/crashtests/justifyfull-selection-containing-non-editable-div-and-everything-styled-white-space-break-space.html