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<!DOCTYPE html>
<title>Same-origin prerendering can access Web Database</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>
<body>
<script>
setup(() => assertSpeculationRulesIsSupported());
async function insertQuery() {
return new Promise(resolve => {
const db = openDatabase("test", "1.0", "test database", 1024);
db.transaction(function (tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS foo (text)');
tx.executeSql('INSERT INTO foo (text) VALUES ("bar")');
}, function(error) {
resolve(error);
}, function() {
resolve("Success");
});
});
}
async function selectQuery() {
return new Promise(resolve => {
const db = openDatabase("test", "1.0", "test database", 1024);
db.transaction(function (tx) {
tx.executeSql('CREATE TABLE IF NOT EXISTS foo (text)');
tx.executeSql('SELECT * FROM foo', [], function (tx, results) {
resolve(results.rows.length);
});
}, function(tx, error) {
resolve(error);
});
});
}
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
});
});
const insertResult = await insertQuery();
assert_equals(insertResult, "Success",
'primary page should be able to execute statements from Web Database.');
// Start prerendering a page that attempts to access Web Database.
startPrerendering(`resources/web-database-access.html?uid=${uid}`);
const result = await gotMessage;
assert_equals(
result, "Success",
'prerendering page should be able to read from Web Database');
const selectResult = await selectQuery();
assert_equals(
selectResult, 2,
'prerendering page should be able to write to Web Database');
}, 'prerendering page should be able to access Web Database');
</script>
</body>
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