Edge Script Injection Rewrites: Zero-Trust Script Proxying

Traditional tag managers load in the client DOM, creating an unavoidable race condition where third-party SDKs can exfiltrate device telemetry before banner evaluation completes.

01 // Client-Side DOM Race Conditions

When asynchronous tags fire inside client HTML, network requests trigger before cookie banners obtain render cycles. In modern litigation audits, this microsecond delay constitutes unconsented data transfer.

02 // Sub-10ms Edge Interception Architecture

By deploying Consent Shield edge workers across 4,000+ global points of presence, script payloads are rewritten into sandboxed inline wrappers in less than 8 milliseconds, ensuring zero unconsented data leakage.

async function handleRequest(request: Request): Promise<Response> {
  const gpc = request.headers.get("Sec-GPC") === "1";
  const geo = request.cf?.country || "US";
  
  if (gpc || requiresStrictOptIn(geo)) {
    return transformHtmlStream(request, { blockThirdPartyTrackers: true });
  }
  return fetch(request);
}

03 // Runtime GPC Header Evaluation

Evaluating the Global Privacy Control header directly on the edge CDN layer guarantees compliance even if CMS plugins crash or frontend templates change.