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<!DOCTYPE html>
<title>Service Worker: recovery by navigation update</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/testharness-helpers.js"></script>
<script src="resources/test-helpers.sub.js"></script>
<script>
async_test(function(t) {
var scope = 'resources/simple.txt';
var worker_url = 'resources/update-recovery-worker.py';
var expected_url = normalizeURL(worker_url);
var registration;
function with_bad_iframe(url) {
return new Promise(function(resolve, reject) {
var frame = document.createElement('iframe');
// There is no cross-browser event to listen for to detect an
// iframe that fails to load due to a bad interception. Unfortunately
// we have to use a timeout.
var timeout = setTimeout(function() {
frame.remove();
resolve();
}, 5000);
// If we do get a load event, though, we know something went wrong.
frame.addEventListener('load', function() {
clearTimeout(timeout);
frame.remove();
reject('expected bad iframe should not fire a load event!');
});
frame.src = url;
document.body.appendChild(frame);
});
}
function with_update(t) {
return new Promise(function(resolve, reject) {
registration.addEventListener('updatefound', function onUpdate() {
registration.removeEventListener('updatefound', onUpdate);
wait_for_state(t, registration.installing, 'activated').then(function() {
resolve();
});
});
});
}
service_worker_unregister_and_register(t, worker_url, scope)
.then(function(r) {
registration = r;
return wait_for_state(t, registration.installing, 'activated');
})
.then(function() {
return Promise.all([
with_update(t),
with_bad_iframe(scope)
]);
})
.then(function() {
return with_iframe(scope);
})
.then(function(frame) {
assert_equals(frame.contentWindow.navigator.serviceWorker.controller.scriptURL,
expected_url);
frame.remove();
return service_worker_unregister_and_done(t, scope);
})
.catch(unreached_rejection(t));
}, 'Recover from a bad service worker by updating after a failed navigation.');
</script>
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