Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prerender/restriction-local-file-system-access.https.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>Same-origin prerendering cannot access local file system</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="../resources/utils.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>
setup(() => assertSpeculationRulesIsSupported());
promise_test(async t => {
const uid = token();
const bc = new PrerenderChannel('prerender-channel', uid);
const gotMessage = new Promise(resolve => {
bc.addEventListener('message', e => {
resolve(e.data);
}, {
once: true
});
});
// Start prerendering a page that attempts to show a local file picker.
startPrerendering(`resources/file-picker.html?uid=${uid}`);
const result = await gotMessage;
assert_equals(result, 'SecurityError')
}, `prerendering pages should not be able to access the local file system ` +
`via the File System Access API`);
</script>