mozilla-central/layout/reftests/printing/test-print-selection-shadow-crossing-3.html (file symbol)

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Test Info: Warnings

<!DOCTYPE html>
<html reftest-print-range="selection">
<head>
<meta charset="utf-8">
<link id="style" href="print.css" rel="stylesheet">
<script>
function selectNodesInShadowTree() {
let host = document.getElementById("host");
host.attachShadow({ mode: "open" }).innerHTML = `
<link id="style" href="print.css" rel="stylesheet">
<p id="shadowContent1">ShadowContent1</p>
<p id="shadowContent2">ShadowContent2</p>
<p id="shadowContent3">ShadowContent3</p>
`;
const innerHost = document.createElement("div");
const innerRoot = innerHost.attachShadow({ mode: "open" });
innerRoot.innerHTML = `
<link id="style" href="print.css" rel="stylesheet">
<p>InnerContent</p>
`;
host.shadowRoot.insertBefore(innerHost, host.shadowRoot.getElementById("shadowContent2"));
// A selection where the range contains a nested shadow tree.
window.getSelection()
.setBaseAndExtent(
lightContent1.firstChild,
3,
lightContent2.firstChild,
4);
}
</script>
</head>
<body onload="selectNodesInShadowTree()">
<p id="lightContent1">LightContent1</p>
<div id="host">Shouldn't show up (in the shadows)</div>
<p id="lightContent2">LightContent2</p>
</body>
</html>