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def main(request, response):
# Headers need to be set before `response.writer` writes out the response.
tao = request.GET.get(b'timing_allow_origin')
if tao:
response.headers.set(b"Timing-Allow-Origin", tao)
if b'origin' in request.headers:
origin = request.headers[b'origin']
response.headers.set(b'Access-Control-Allow-Origin', origin)
content = request.GET.first(b'content')
response.headers.set(b'Cache-Control', b'max-age=60')
response.headers.set(b'ETag', b'assdfsdfe')
# Handle CORS-preflights of non-simple requests.
if request.method == 'OPTIONS':
response.status = 204
requested_method = request.headers.get(b"Access-Control-Request-Method")
if requested_method:
response.headers.set(b"Access-Control-Allow-Methods", requested_method)
requested_headers = request.headers.get(b"Access-Control-Request-Headers")
if requested_headers:
response.headers.set(b"Access-Control-Allow-Headers", requested_headers)
else:
if 'Cache-Control' in request.headers:
response.status = (304, b'NotModified')
else:
response.status = (200, b'OK')
response.write_status_headers()
response.writer.write(content)