bug1675097.https.html

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This WPT test may be referenced by the following Test IDs:
- /service-workers/bug1675097.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Controlled iframe with initial about:blank becomes sandboxed</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>

<body>

<script>

// This test creates an iframe controlled by a service worker, which in turn has

// another iframe in it. The inner iframe's fetch is intercepted by the service

// worker, which notifies the outer iframe, which then adds the sandbox

// attribute to the inner iframe. The outer iframe then signals the service

// worker that it should evaluate self.clients.matchAll() and finally respond to

// the inner iframe's fetch.

// Evaluating self.clients.matchAll() causes the creation of the initial

// about:blank document for the inner iframe, and if the sandboxing flags used

// for that document are not the original flags for the inner iframe (i.e. none)

// then the document will have an opaque origin, a case that we need to handle

// properly.

promise_test(async t => {

    const URL = 'resources/bug1675097-sw.js';

    const SCOPE = 'resources/';

    const registration = await service_worker_unregister_and_register(t, URL, SCOPE);

    t.add_cleanup(() => registration.unregister());

    await wait_for_state(t, registration.installing, 'activated');

    const outer = await with_iframe(SCOPE + 'bug1675097-iframe.html');

    t.add_cleanup(() => outer.remove());

}, 'Regression test for bug 1675097');

</script>

</body>