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Test Info:

<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>Bug 1709069: Test that Data URI which makes a top-level request gets updated in https-first</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<iframe style="width:100%;" id="testframe"></iframe>
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
window.addEventListener("message", receiveMessage);
// HTML site which makes a top-level http request
const HTML = `
<html>
<body>
DATA HTML
<script>
<\/script>
<\/body>
<\/html>
`;
const DATA_HTML = "data:text/html, " + HTML;
// Verify that data uri top-level request got upgraded to https and
// the reached location is correct
async function receiveMessage(event){
let data = event.data;
"Reached the correct location");
window.removeEventListener("message", receiveMessage);
SimpleTest.finish();
}
function test_toplevel_https() {
document.getElementById("testframe").src = DATA_HTML;
}
SpecialPowers.pushPrefEnv({ set: [
["dom.security.https_first", true],
]}, test_toplevel_https);
</script>
</body>
</html>