blob: 470b19b67473ec45a1c81e89634fa207c788a38a (
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<script>
window.onload=function(){
let bigShadowTree = `<div>`;
for (let i = 0; i < 10; ++i)
bigShadowTree = bigShadowTree + bigShadowTree;
b.attachShadow({ mode: 'open' }).innerHTML = bigShadowTree;
// Create wrappers for all those elements.
[...b.shadowRoot.querySelectorAll('*')].forEach(() => {});
document.documentElement.addEventListener('DOMNodeRemoved', function(){
window.frames[0].document.body.appendChild(b)
})
window.frames[0].document.body.appendChild(a)
}
</script>
<mark id='a'>
<iframe></iframe>
<div id='b'>
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