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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /xml/xslt/xslt-mutation-crash.xhtml - WPT Dashboard Interop Dashboard
<?xml version="1.0" encoding="UTF-8"?>
<head>
<title>XSLT LoadChildSheets crash test</title>
</head>
<body>
<p>Test passes if it does not crash.</p>
<script><![CDATA[
function go() {
// Unique URL to avoid memory cache returning synchronously.
var slow = 'xslt-mutation-crash-slow.xsl?pipe=trickle(d1)&t=' + Date.now() + Math.random();
// 1. Create an xml-stylesheet PI pointing at an external (delayed) XSL.
var pi = document.createProcessingInstruction(
'xml-stylesheet', 'type="text/xsl" href="' + slow + '"');
// 2. Insert as a direct child of the Document to initiate the external fetch.
document.insertBefore(pi, document.documentElement);
// 3. Mutate the PI to a local href while the external fetch is in flight.
// This verifies that the browser correctly detaches the pending network
// resource and does not crash when the delayed response eventually arrives.
pi.data = 'type="text/xsl" href="#x"';
// 4. Wait 1.5 seconds for the trickle(d1) fetch to complete and verify no crash occurs.
setTimeout(() => {
document.documentElement.classList.remove('test-wait');
}, 1500);
}
if (document.readyState === 'complete') {
go();
} else {
window.addEventListener('load', go);
}
]]></script>
</body>
</html>