export default {
  async fetch(request, env, ctx) {
    const targetUrl = "https://play.geforcenow.com";
    
    const url = new URL(request.url);
    // Construct target URL while keeping path and query params intact
    const destination = targetUrl + url.pathname + url.search;

    // Clone request headers to send to origin
    const requestHeaders = new Headers(request.headers);
    requestHeaders.set("Host", "play.geforcenow.com");
    requestHeaders.set("Referer", "https://play.geforcenow.com");

    // Fetch resource from GeForce NOW
    let response = await fetch(destination, {
      method: request.method,
      headers: requestHeaders,
      body: ["GET", "HEAD"].includes(request.method) ? null : request.body,
      redirect: "follow",
    });

    // Create a new response so we can modify response headers
    let newHeaders = new Headers(response.headers);

    // Strip framing block headers
    newHeaders.delete("x-frame-options");
    newHeaders.delete("content-security-policy");

    // Re-introduce relaxed CSP (optional, prevents CSP leaks)
    newHeaders.set("Access-Control-Allow-Origin", "*");

    return new Response(response.body, {
      status: response.status,
      statusText: response.statusText,
      headers: newHeaders,
    });
  },
};