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<!DOCTYPE HTML>
<html>
<head>
<title>Bug 1645054 - test dom.serviceWorkers.enabled preference</title>
</head>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="utils.js"></script>
<script>
function create_iframe(url) {
return new Promise(function(res) {
iframe = document.createElement('iframe');
iframe.src = url;
iframe.onload = function() { res(iframe) }
document.body.appendChild(iframe);
});
}
async function do_fetch(pref) {
await SpecialPowers.pushPrefEnv({ set: [pref] });
let iframe = await create_iframe("./pref/fetch_nonexistent_file.html");
let status = await iframe.contentWindow.fetch_status();
await SpecialPowers.popPrefEnv();
return status;
}
add_task(async () => {
await SpecialPowers.pushPrefEnv({
set: [['dom.serviceWorkers.testing.enabled', true]]
});
let reg = await navigator.serviceWorker.register(
'pref/intercept_nonexistent_file_sw.js');
await waitForState(reg.installing, 'activated');
let status;
status = await do_fetch(['dom.serviceWorkers.enabled', true]);
is(status, 200, 'SW enabled');
status = await do_fetch(['dom.serviceWorkers.enabled', false]);
is(status, 404, 'SW disabled');
status = await do_fetch(['dom.serviceWorkers.enabled', true]);
is(status, 200, 'SW enabled again');
await reg.unregister();
});
</script>
<body>
</body>
</html>
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