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chromium/third_party/blink/web_tests/external/wpt/html/semantics/popovers/invoker-show-crash.html 

<!DOCTYPE html>
<link rel=author href="mailto:[email protected]">
<link rel=help href="https://bugs.chromium.org/p/chromium/issues/detail?id=1463384">
<link rel=help href="https://github.com/whatwg/html/issues/9383">

<button id=button popovertarget=popover>button</button>
<div id=popover popover=auto>popover</div>

<script>
button.click();
popover.showPopover();
</script>