fix: Nginx Fix

nginx.conf

@@ -1,15 +1,37 @@
+# Standard Nginx top-level config
+user  nginx;
+worker_processes  auto;
+error_log  /var/log/nginx/error.log notice;
+pid        /var/run/nginx.pid;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include       /etc/nginx/mime.types;
+    default_type  application/octet-stream;
+
+    # --- THE FIX STARTS HERE ---
+    # These MUST be in the http block to handle the IAP header early
+    client_header_buffer_size 64k;
+    large_client_header_buffers 4 64k;
+    # --- THE FIX ENDS HERE ---
+
+    sendfile        on;
+    keepalive_timeout  65;
+
     server {
         listen 80;
         server_name _;
 
-    # Increase buffer size to handle large IAP JWT headers
-    client_header_buffer_size 4k;
-    large_client_header_buffers 4 16k;
-
         root /usr/share/nginx/html;
         index index.html;
 
         location / {
             try_files $uri $uri/ /index.html;
+            # Ensure headers are passed correctly
+            proxy_set_header Host $host;
+        }
     }
 }