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import importlib
client_hints_ua_list = importlib.import_module("client-hints.resources.clienthintslist").client_hints_ua_list
def main(request, response):
"""
Simple handler that sets a response header based on which client hint
request headers were received.
"""
response.headers.append(b"Access-Control-Allow-Origin", b"*")
response.headers.append(b"Access-Control-Allow-Headers", b"*")
response.headers.append(b"Access-Control-Expose-Headers", b"*")
client_hint_headers = client_hints_ua_list()
request_client_hints = {i: request.headers.get(i) for i in client_hint_headers}
for header in client_hint_headers:
if request_client_hints[header] is not None:
response.headers.set(header + b"-received", request_client_hints[header])
headers = []
content = u""
return 200, headers, content
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