updating the webconfig

src/main/java/com/ffii/lioner/config/WebConfig.java

@@ -19,16 +19,12 @@ public class WebConfig implements WebMvcConfigurer {
           .allowedOrigins(
             "http://localhost",       // If you test locally via Nginx at http://localhost
             "http://127.0.0.1",       // Sometimes browsers resolve localhost to 127.0.0.1
-            "http://20.2.170.164",    // Look like no use           
+            "http://10.40.0.4",
+            "http://20.2.170.164",  // IP cloud
             "http://localhost:3000" // If you ever run React dev server directly
             // Add any other specific domains/IPs/ports where your frontend will be hosted
         )
-        // You had .exposedHeaders("filename") - keep if you need to read custom response headers
-        .exposedHeaders("filename")
-        // You had .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD") - This is missing "OPTIONS"
         .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD", "OPTIONS") // **** IMPORTANT: Add OPTIONS ****
-        // You had .allowedHeaders("*") duplicated - harmless, but the first one is enough
-        // .allowedHeaders("*")
         .allowCredentials(true)
         .maxAge(3600); // Recommended: Caches preflight results for 1 hour
 }