for example:
i have a html page on my desktop.not on the server.I want to show the sharepoint page in iframe.bug i got an error: "This contentcannot be displayed in a frame"
<html>
<body>
<iframe src='http://xxxx:8899/_layouts/15/xxxSharepointProject/test.aspx'></iframe>
<script>
</script>
</body>
</html>