File: shadow-reassign-dynamic-005-crash.html

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thunderbird 1%3A140.4.0esr-1~deb13u1
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file content (15 lines) | stat: -rw-r--r-- 387 bytes parent folder | download | duplicates (15) 
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<!doctype html>
<div id="host">
  <template shadowrootmode="open">
    <slot></slot>
    <slot></slot>
  </template>
  <div id="child1">Child1</div>
  <div id="child2" slot="named-slot">Child2</div>
</div>
<script>
  host.getBoundingClientRect();
  host.shadowRoot.querySelectorAll("slot")[1].name = "named-slot";
  host.style.display = "flex";
  host.getBoundingClientRect();
</script>