| 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"*") | |
| if b"device-memory" in request.headers: | |
| response.headers.set(b"device-memory-received", request.headers.get(b"device-memory")) | |
| if b"dpr" in request.headers: | |
| response.headers.set(b"dpr-received", request.headers.get(b"dpr")) | |
| if b"viewport-width" in request.headers: | |
| response.headers.set(b"viewport-width-received", request.headers.get(b"viewport-width")) | |
| if b"rtt" in request.headers: | |
| response.headers.set(b"rtt-received", request.headers.get(b"rtt")) | |
| if b"downlink" in request.headers: | |
| response.headers.set(b"downlink-received", request.headers.get(b"downlink")) | |
| if b"ect" in request.headers: | |
| response.headers.set(b"ect-received", request.headers.get(b"ect")) | |
| if b"Sec-CH-Lang" in request.headers: | |
| response.headers.set(b"lang-received", request.headers.get(b"Sec-CH-Lang")) | |
| if b"sec-ch-ua-mobile" in request.headers: | |
| response.headers.set(b"mobile-received", request.headers.get(b"sec-ch-ua-mobile")) |