def main(request, response):
origin = request.GET.first(b"origin");
value = request.GET.first(b"value");
# This is used to solve the race condition we have for postMessages
shouldSucceed = request.GET.first(b"loadShouldSucceed", b"false");
return ([(b"Content-Type", b"text/html")],
b"""
XFO.
""" % (origin, value, shouldSucceed))