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Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
Set a policy in the document to ensure that the block is triggering
in the worker and not in the document.
<meta http-equiv="content-security-policy" content="connect-src 'self'">
navigator.serviceWorker.register("./support/inside-worker.sub.js", { scope: "./support/" })
.then(r => {
var sw = || r.installing || r.waiting;
add_completion_callback(_ => r.unregister());
// Forward 'securitypolicyviolation' events from the document into the
// worker (we shouldn't actually see any, so the worker will assert that
// none are fired.
document.addEventListener('securitypolicyviolation', _ => {
sw.postMessage("SecurityPolicyViolation from Document");