def main(request, response): | |
response_headers = [(b"Access-Control-Allow-Origin", b"*")] | |
body = b""" | |
<p id=referrer>%s</p> | |
<script> | |
const referrer_text = referrer.textContent; | |
window.parent.postMessage(referrer_text, "*"); | |
</script> | |
""" % request.headers.get(b"referer", b"") | |
return (200, response_headers, body) |