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<!DOCTYPE html>
<title>Same-origin prerendering can access Indexed 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="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
<body>
<script>
setup(() => assertSpeculationRulesIsSupported());
// This delay is to prevent a race condition which can cause false passes -
// a service worker might take some time to install, and if activation is too quick it might
// end up occuring after activation by chance.
const ACTIVATION_DELAY = 500;
promise_test(async t => {
const reg = await service_worker_unregister_and_register(
t, "./resources/service-worker.js", `resources/`);
t.add_cleanup(() => reg.unregister());
const {exec} = await create_prerendered_page(t);
const {text, prerendering} = await exec(async () => {
const text = await (await fetch(`ping`)).text();
return {text, prerendering: document.prerendering};
});
assert_true(prerendering);
assert_equals(text, 'pong');
}, 'A prerendered page should be able to access an existing Service Worker');
promise_test(async t => {
const {exec, activate} = await create_prerendered_page(t);
const scope = `./${token()}/`;
await exec(async scope => {
window.serviceWorkerInstalled = new Promise(resolve => {
navigator.serviceWorker.register('./service-worker.js', {scope})
.then(reg => {
reg.unregister();
resolve({prerendering: document.prerendering});
});
});
}, scope);
await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
await activate();
const {prerendering} = await exec(async () => { return await window.serviceWorkerInstalled});
assert_false(prerendering, 'Service Worker Installation should occur after activation');
}, 'Registering a new service worker from a prerendered page should be delayed');
promise_test(async t => {
const uid = token();
const reg = await service_worker_unregister_and_register(
t, "./resources/service-worker.js", `./resources/${uid}/`);
t.add_cleanup(() => reg.unregister());
const {exec, activate} = await create_prerendered_page(t);
await exec(async uid => {
window.serviceWorkerUnregistered = (async () => {
const regs = await navigator.serviceWorker.getRegistrations();
const reg = regs.find(r => r.scope.includes(uid));
await reg.unregister();
return {prerendering: document.prerendering};
})();
}, uid);
await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
await activate();
const {prerendering} = await exec(() => window.serviceWorkerUnregistered);
assert_false(prerendering, 'Service Worker deregistration should occur after activation');
}, 'Unregistering an exsiting service worker from a prerendered page should be delayed');
promise_test(async t => {
const uid = token();
const reg = await service_worker_unregister_and_register(
t, "./resources/service-worker.js", `./resources/${uid}/`);
t.add_cleanup(() => reg.unregister());
const {exec, activate} = await create_prerendered_page(t);
await exec(async uid => {
window.serviceWorkerUpdated = (async () => {
const regs = await navigator.serviceWorker.getRegistrations();
const reg = regs.find(r => r.scope.includes(uid));
await reg.update();
return {prerendering: document.prerendering};
})();
}, uid);
await new Promise(resolve => t.step_timeout(resolve, ACTIVATION_DELAY));
await activate();
const {prerendering} = await exec(() => window.serviceWorkerUpdated);
assert_false(prerendering, 'Service Worker updates should occur after activation');
}, 'Updating an exsiting service worker from a prerendered page should be delayed');
promise_test(async t => {
const reg = await service_worker_unregister_and_register(
t, "./resources/service-worker.js", 'resources/');
t.add_cleanup(() => reg.unregister());
const {exec} = await create_prerendered_page(t);
const {clientInfo} = await exec(async () => (await fetch(`client`)).json());
assert_not_equals(clientInfo.id, null);
assert_equals(clientInfo.visibilityState, 'hidden');
assert_equals(clientInfo.focused, false);
}, 'A prerendered page should be accessible as a hidden & unfocused SW client');
</script>
</body>
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