fix(proxy): remove prohibited CF-* headers to prevent Cloudflare Error 1000

src/app/api/proxy/route.ts

@@ -17,14 +17,6 @@ const REQUEST_HEADERS_TO_FORWARD = [
   "x-csrftoken",
   "x-requested-with",
   "x-xsrf-token",
-  "cf-connecting-ip",
-  "cf-ipcountry",
-  "cf-ray",
-  "cf-visitor",
-  "x-real-ip",
-  "x-forwarded-for",
-  "x-forwarded-proto",
-  "x-forwarded-host",
 ];
 
 const RESPONSE_HEADERS_TO_DROP = [
@@ -174,23 +166,14 @@ function getRequestHeaders(request: NextRequest, targetUrl: URL) {
   headers.set("referer", `${targetUrl.origin}/`);
   headers.set("user-agent", "dart:io");
 
-  // Forward real client IP and Geo headers to Django backend
+  // Forward standard X-Forwarded-For if client IP is available
   const clientIp =
     request.headers.get("cf-connecting-ip") ||
     request.headers.get("x-real-ip") ||
     request.headers.get("x-forwarded-for")?.split(",")[0]?.trim();
 
-  if (clientIp) {
-    headers.set("cf-connecting-ip", clientIp);
-    headers.set("x-real-ip", clientIp);
-    if (!headers.has("x-forwarded-for")) {
-      headers.set("x-forwarded-for", clientIp);
-    }
-  }
-
-  const cfCountry = request.headers.get("cf-ipcountry");
-  if (cfCountry) {
-    headers.set("cf-ipcountry", cfCountry);
+  if (clientIp && !headers.has("x-forwarded-for")) {
+    headers.set("x-forwarded-for", clientIp);
   }
 
   return headers;