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+<script>
+document.addEventListener("DOMContentLoaded", () => {
+ let c = a.attachShadow({mode: "open"})
+ let b = document.getElementById("not-slotted");
+ window.parent.getSelection().setBaseAndExtent(b, 0, c, 0)
+})
+</script>
+<div id="a">A</div>
+<video>
+ <div id="host">
+ <template shadowrootmode="open">
+ </template>
+ <span id="not-slotted">NotSlotted</span>
+ </div>
+</video>