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<!DOCTYPE html>
<meta charset="utf-8">
<title>Incumbent settings object for host functions</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<!-- This is the entry page. -->
<iframe src="resources/incumbent-incumbent.html"></iframe>
<script>
setup({ explicit_done: true });
// postMessage should pick the incumbent page as its .source value to set on the MessageEvent, even
// inside host functions.
const expectedURL = (new URL("resources/incumbent-incumbent.html", location.href)).href;
let testId = 0;
window.onload = () => {
const relevantWindow = frames[0].document.querySelector("#r").contentWindow;
function setupTest(t) {
++testId;
const thisTestId = testId;
relevantWindow.addEventListener("messagereceived", t.step_func(e => {
const [receivedTestId, receivedSourceURL] = e.detail;
if (receivedTestId !== thisTestId) {
return;
}
assert_equals(receivedSourceURL, expectedURL);
t.done();
}));
return thisTestId;
}
async_test(t => {
const thisTestId = setupTest(t);
frames[0].runWindowPostMessageVeryIndirectly(thisTestId, "*");
}, "Sanity check: this all works as expected synchronously");
async_test(t => {
const thisTestId = setupTest(t);
frames[0].runWindowPostMessageVeryIndirectlyWithNoUserCode(thisTestId, "*");
}, "Start function");
done();
};
</script>
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