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<!DOCTYPE html>
<meta charset="utf-8">
<title>Meta refresh is blocked by the allow-scripts sandbox flag at its creation time, not when refresh comes due</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://html.spec.whatwg.org/multipage/semantics.html#attr-meta-http-equiv-refresh">
<div id="log"></div>
<script>
"use strict";
setup({ single_test: true });
const sourceIFrame = document.createElement("iframe");
sourceIFrame.setAttribute("sandbox", "allow-same-origin");
const destIFrame = document.createElement("iframe");
let sourceLoadCount = 0;
let destLoadCount = 0;
sourceIFrame.onload = () => {
++sourceLoadCount;
if (sourceLoadCount === 2) {
assert_unreached("The iframe from which the meta came from must not refresh");
}
maybeStartTest();
};
destIFrame.onload = () => {
++destLoadCount;
if (destLoadCount === 2) {
// destIFrame doesn't have the sandboxed automatic features browsing context
// flag sets, thus navigated.
assert_equals(destIFrame.contentDocument.body.textContent.trim(), "foo");
done();
}
maybeStartTest();
};
function maybeStartTest() {
if (sourceLoadCount === 1 && destLoadCount === 1) {
const meta = sourceIFrame.contentDocument.querySelector("meta");
destIFrame.contentDocument.body.appendChild(meta);
}
}
sourceIFrame.src = "support/refresh.sub.html?input=" + encodeURIComponent("1; url=foo");
destIFrame.src = "support/ufoo";
document.body.appendChild(sourceIFrame);
document.body.appendChild(destIFrame);
</script>
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