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def main(request, response):
# Handle CORS preflight requests
if request.method == u'OPTIONS':
# Always reject preflights for one subdomain
if b"www2" in request.headers[b"Origin"]:
return (400, [], u"CORS preflight rejected for www2")
return [
(b"Content-Type", b"text/plain"),
(b"Access-Control-Allow-Origin", b"*"),
(b"Access-Control-Allow-Methods", b"get"),
(b"Access-Control-Allow-Headers", b"Content-Type"),
], u"CORS allowed"
if b"reportID" in request.GET:
key = request.GET.first(b"reportID")
else:
response.status = 400
return "reportID parameter is required."
with request.server.stash.lock:
visited = request.server.stash.take(key=key)
if visited is None:
response.headers.set("Reporting-Endpoints",
b"default=\"/reporting/resources/report.py?reportID=%s\"" % key)
request.server.stash.put(key=key, value=True)
response.content = b"""
<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Generate deprecation report</title>
<script>
webkitRequestAnimationFrame(() => {});
</script>
"""