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<!DOCTYPE html>
<html>
<head>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
</head>
<body>
<span>One two</span>
<script>
promise_test(async function (t) {
await new Promise(resolve => {
window.onload = resolve;
})
const range = document.createRange();
range.setStart(document.body, 0);
range.setEnd(document.body, 1);
const highlight = new Highlight(range);
CSS.highlights.set("foo", highlight);
document.getSelection().addRange(range);
const highlightRange = highlight.entries().next().value[0];
const selectionRange = document.getSelection().getRangeAt(0);
assert_equals(
highlightRange,
selectionRange,
"The same range must be present in the highlight and the Selection."
);
}, "Range is shared between a custom highlight and the document's Selection.");
</script>
</body>
</html>
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