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Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta http-equiv="Content-Security-Policy" content="blabla">
<div id="target"></div>
<div id="probe"></div>
test(t => {
// Regression test for (Should work in any browser, though.)
// The top-level doc has a CSP that doesn't do anything interesting. We'll
// parse a doc and create an iframe with an embedded CSP, and will ensure that
// the CSP applies to the frame, but not the top-level doc.
const target = document.getElementById("target");
const probe = document.getElementById("probe");
probe.innerHTML = "probe";
const doc = new DOMParser().parseFromString(`
<body><div id="probe"></div></body>"`, "text/html");
probe.innerHTML = "probe";
const frame = document.createElement("iframe");
frame.src = `data:text/html;${encodeURI(doc.documentElement.outerHTML)}`; = "frame";
const frame_probe = document.getElementById("frame").contentDocument.getElementById("probe");
probe.innerHTML = "probe";
assert_throws_js(TypeError, _ => { frame_probe.innnerHTML = "probe" });
}, "Regression test for TT changes to parseFromString.");