Payment Form

Test different HTTP methods

Initial Request Headers (from HTML GET)

{
  "host": "experiments.cfi-fingerprint.com",
  "x-forwarded-proto": "https",
  "cf-ray": "9fb62f472e6251a8-EWR",
  "accept": "*/*",
  "accept-encoding": "gzip, br",
  "user-agent": "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])",
  "cdn-loop": "cloudflare; loops=2",
  "cf-connecting-ip": "216.73.217.12",
  "cf-ipcountry": "US",
  "cf-visitor": "{\"scheme\":\"https\"}",
  "cf-connecting-o2o": "1",
  "x-forwarded-for": "216.73.217.12,216.73.217.12,172.70.231.5",
  "do-connecting-ip": "216.73.217.12",
  "x-forwarded-host": "experiments.cfi-fingerprint.com",
  "x-forwarded-port": "8080"
}

Fetch API

XHR

HTTP Form

Uses a plain HTML form submission to POST directly to /api/pay-1.