array:9 [
  "accept" => array:1 [
    0 => "*/*"
  ]
  "user-agent" => array:1 [
    0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  ]
  "host" => array:1 [
    0 => "beta.rebelbooks.com"
  ]
  "content-length" => array:1 [
    0 => "0"
  ]
  "via" => array:1 [
    0 => "2.0 Caddy"
  ]
  "x-forwarded-proto" => array:1 [
    0 => "https"
  ]
  "x-forwarded-for" => array:1 [
    0 => "216.73.216.60"
  ]
  "x-forwarded-host" => array:1 [
    0 => "beta.rebelbooks.com"
  ]
  "accept-encoding" => array:1 [
    0 => "gzip, br, zstd, deflate"
  ]
]