| def main(request, response): | |
| """ | |
| Simple handler that sets a response header based on which client hint | |
| request headers were received. | |
| """ | |
| response.headers.append("Access-Control-Allow-Origin", "*") | |
| response.headers.append("Access-Control-Allow-Headers", "*") | |
| response.headers.append("Access-Control-Expose-Headers", "*") | |
| if "device-memory" in request.headers: | |
| response.headers.set("device-memory-received", request.headers.get("device-memory")) | |
| if "dpr" in request.headers: | |
| response.headers.set("dpr-received", request.headers.get("dpr")) | |
| if "viewport-width" in request.headers: | |
| response.headers.set("viewport-width-received", request.headers.get("viewport-width")) | |
| if "rtt" in request.headers: | |
| response.headers.set("rtt-received", request.headers.get("rtt")) | |
| if "downlink" in request.headers: | |
| response.headers.set("downlink-received", request.headers.get("downlink")) | |
| if "ect" in request.headers: | |
| response.headers.set("ect-received", request.headers.get("ect")) | |
| if "Sec-CH-Lang" in request.headers: | |
| response.headers.set("lang-received", request.headers.get("Sec-CH-Lang")) |