cross-shadow-boundary-selection-splittext-crash.html

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This WPT test may be referenced by the following Test IDs:
- /shadow-dom/cross-shadow-boundary-selection-splittext-crash.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<meta name="assert" content="Splitting a text node involved in a cross-shadow-boundary selection should not crash.">

<div id="host">Light DOM text</div>

<span>This test passes if the renderer does not crash.</span>

<script>

const host = document.getElementById('host');

const shadow = host.attachShadow({mode: 'open'});

shadow.innerHTML = '<slot></slot><span>AABBCCDDEEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSTT</span>';

const textInShadow = shadow.querySelector('span').firstChild;

const lightText = host.firstChild;

document.body.offsetHeight;

const sel = window.getSelection();

sel.removeAllRanges();

try {

  sel.setBaseAndExtent(textInShadow, 30, lightText, 5);

} catch(e) {

  try {

    sel.setBaseAndExtent(lightText, 5, textInShadow, 30);

  } catch(e2) {}

document.body.offsetHeight;

textInShadow.splitText(10);

document.body.offsetHeight;

</script>

</html>