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<!DOCTYPE HTML>
<html>
<head><meta charset="utf-8"></head>
<body>
<b>Frame 1</b><br/>
<a href="#"" id="testlink" onclick="parent.frames[1].frames[0].location='http://test2.mochi.test:8888/tests/docshell/test/navigation/file_triggeringprincipal_subframe_nav.html'">click me</a>
<script type="application/javascript">
// make sure to set document.domain to the same domain as the subframe
window.onload = function() {
document.domain = "mochi.test";
};
window.addEventListener("message", receiveMessage);
function receiveMessage(event) {
// make sure to get the right start command, otherwise
// let the parent know and fail the test
if (event.data.start !== "startTest") {
window.removeEventListener("message", receiveMessage);
window.parent.postMessage({triggeringPrincipalURI: "false"}, "*");
}
// click the link to navigate the subframe
document.getElementById("testlink").click();
}
</script>
</body>
</html>