Proxy Datasense with Cloudflare

// Cloudflare Worker — route: example.com/_ds/*
const UPSTREAM = "https://usedatasense.com"

export default {
  async fetch(request) {
    const url = new URL(request.url)
    const upstreamPath = url.pathname.replace(/^\/_ds/, "")
    const headers = new Headers(request.headers)
    headers.set("x-datasense-ip", request.headers.get("cf-connecting-ip") ?? "")
    headers.set("x-datasense-country", request.cf?.country ?? "")
    headers.set("x-datasense-region", encodeURIComponent(request.cf?.region ?? ""))
    headers.set("x-datasense-city", encodeURIComponent(request.cf?.city ?? ""))
    headers.delete("cookie")

    return fetch(UPSTREAM + upstreamPath + url.search, {
      method: request.method,
      headers,
      // Bytes, not text: session replay chunks are gzipped.
      body: request.method === "POST" ? await request.arrayBuffer() : undefined,
    })
  },
}

<script
  defer
  data-website-id="YOUR_SITE_ID"
  src="/_ds/js/script.cookies.js"
></script>