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<!doctype html>
<meta charset=utf-8>
<title>
Set location from a parent, then do a fragment navigation from within the
frame.
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<iframe></iframe>
<script>
promise_test(async test => {
// Wait for the DOM to be ready before inserting an <iframe> into it.
await new Promise(resolve => { onload = resolve });
// Insert an <iframe> and wait for a dummy document to be loaded into it.
let iframe = document.createElement("iframe");
iframe.src = "support/dummy.html";
let iframe_loaded = new Promise(resolve => { iframe.onload = resolve });
document.body.appendChild(iframe);
await iframe_loaded;
// The referrer is the main frame's URL since it initiated the iframe
// creation.
assert_equals(iframe.contentDocument.referrer, document.URL);
// Do a fragment navigation from the frame, which will fire the
// 'hashchange' function.
let hash_changed = new Promise(resolve => {
iframe.contentWindow.onhashchange = resolve
});
let navigateScript = iframe.contentDocument.createElement("script");
navigateScript.innerHTML = "location.href = '#foo'";
iframe.contentDocument.body.appendChild(navigateScript);
await hash_changed;
// The referrer stays the same, even when the last navigation was
// initiated by the iframe (instead of the main frame document).
assert_equals(iframe.contentDocument.referrer, document.URL);
});
</script>
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