GET /materials/http/return.php HTTP/1.1 Content-Length: 0 Connection: close Cache-Control: max-age=259200 X-Forwarded-For: 10.1.101.139 Via: 1.1 squid-proxy-5b5d847c96-f6lwq (squid/6.13) Host: www.r-datacollection.com Accept-Encoding: gzip, br, zstd, deflate Cookie: PHPSESSID=8c5d909c049641d382430450eec7aa82 User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) Accept: */* Authorization: