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chromium/third_party/blink/web_tests/fast/css-grid-layout/crash-caret.html 

<!DOCTYPE html>
<title>Test using large start offset.</title>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/grid-definitions-parsing-utils.js"></script>

<style>
  #htmlvar00007 { -webkit-writing-mode: vertical-lr; overflow-y: auto; }
  .class1 { display: inline-grid; }
  #htmlvar00002 {  margin-bottom: 89px; }
  :not(fieldset) {
    border-block-start-style: dashed;
    -webkit-justify-content: space-around }
  .class1 { min-width: 2147483648px; }
  </style>

<meter id="htmlvar00002"></meter>
<label id="htmlvar00006" class="class1" >
<menu id="htmlvar00007" >abc</menu>

<script>
  var var00033 = document.createElement("area");
  var00033.addEventListener("DOMSubtreeModified",
    function() {
      var var00020 = document.caretRangeFromPoint(233,160);
    });
  var00033.download = "";

  test(function () {
    testGridPositionDefinitionsValues(
      document.getElementById("htmlvar00006"),
      "auto", "auto", "auto", "auto");
  },
  "Test that 'caretRangeFromPoint' doesn't crash with various grid properties.");
</script>