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<!DOCTYPE html>
<title>Same-origin prerendering can access navigator.plugins</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();
assert_implements_optional(
'plugins' in navigator, 'navigator.plugins is not provided.'
);
});
promise_test(async t => {
const uid = token();
const bc = new PrerenderChannel('prerender-channel', uid);
t.add_cleanup(_ => bc.close());
const gotMessage = new Promise(resolve => {
bc.addEventListener('message', e => {
resolve(e.data);
}, {
once: true
});
});
// Start prerendering a page that attempts to access the navigator.plugins.
startPrerendering(`resources/navigator-plugins.html?uid=${uid}`);
const result = await gotMessage;
const plugins = JSON.parse(result);
assert_equals(plugins.length, navigator.plugins.length);
for (let i = 0; i < plugins.length; ++i) {
const expected_plugin = navigator.plugins[i];
assert_equals(plugins[i].pluginLength, expected_plugin.length);
for (let j = 0; j < plugins[i].pluginLength; ++j) {
assert_equals(plugins[i].pluginTypes[j], expected_plugin[j].type,
`type of navigator.plugins[${i}].plugin[${j}]`);
}
}
}, 'prerendering page should be able to access the navigator.plugins');
</script>
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