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Test Info: Warnings

<!DOCTYPE html>
<html>
<head>
<title>Test window.postMessages from system principal to window with non-default originAttributes</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<iframe id="target-iframe"></iframe>
<script type="application/javascript">
add_task(async function() {
let iframe = document.querySelector("#target-iframe");
let win = SpecialPowers.wrap(iframe).contentWindow;
let docShell = win.docShell;
// Add private browsing ID to docShell origin and load document.
docShell.setOriginAttributes({privateBrowsingId: 1});
await new Promise(resolve => {
iframe.addEventListener("load", resolve, true);
iframe.src = SimpleTest.getTestFileURL("file_receiveMessage.html");
});
// Set up console monitor to wait for warning.
const expectedMessage = (
'Attempting to post a message to window with url ' +
'and origin "http://mochi.test:8888^privateBrowsingId=1" from a system ' +
'principal scope with mismatched origin "[System Principal]".');
let consolePromise = new Promise(resolve => {
SimpleTest.monitorConsole(resolve, [e => e.message == expectedMessage]);
});
// Post to the content window via SpecialPowers' system principal scope.
win.postMessage("Hello. o/", "http://mochi.test:8888");
await new Promise(resolve => setTimeout(resolve, 0));
SimpleTest.endMonitorConsole();
await consolePromise;
// Check that the window received and handled the message.
is(win.document.body.textContent, "|Hello. o/",
"Content window received the expected message");
});
</script>
</body>
</html>