CORS troubleshooting

Caddyfile

@@ -1,13 +1,16 @@
 ai-gateway.ldex.dev {
-    # 1. Force CORS headers for every request
+    # 1. Force CORS headers and DELETE duplicates from backend
     header {
+        -Access-Control-Allow-Origin
+        -Access-Control-Allow-Methods
+        -Access-Control-Allow-Headers
         Access-Control-Allow-Origin *
         Access-Control-Allow-Methods "GET, POST, OPTIONS"
         Access-Control-Allow-Headers "*"
         Access-Control-Expose-Headers "*"
     }
 
-    # 2. Immediately handle OPTIONS requests (the preflight)
+    # 2. Immediately handle OPTIONS requests
     @options {
         method OPTIONS
     }
@@ -15,6 +18,6 @@ ai-gateway.ldex.dev {
         respond "" 204
     }
 
-    # 3. Proxy everything else to the app
+    # 3. Proxy everything else
     reverse_proxy ai-gateway:8000
 }