<!doctype html>
<script>
// Test for content redistribution outside of the document.
// Passes if it doesn't assert.
let host = document.createElement('div');
host.innerHTML = "<div id='foo'></div>";
let shadowRoot = host.createShadowRoot();
shadowRoot.innerHTML = "<content select='#foo'></content>";
host.firstElementChild.removeAttribute('id');
// Move to the document, do the same.
document.documentElement.appendChild(host);
host.firstElementChild.setAttribute('id', 'foo');
</script>