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<p>This test ensures selection that crosses the shadow DOM boundary of a readonly input element cannot be made by a mouse drag.</p>
<p>To manually test, select text by a mouse drag starting in "hello" and ending in "world". Selection should only extend inside the input element.</p>
<div id="test">
<input id="from" type="text" value="hello" readonly>
<span id="to">world</span>
</div>
<script src="resources/select-across-readonly-input.js"></script>
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