minor changes

backend/main.go

@@ -28,10 +28,25 @@ func main() {
 		}
 	}
 
-	// Register handlers with logging middleware
-	http.HandleFunc("/submit", loggingMiddleware(h.SubmitHandler))
-	http.HandleFunc("/status", loggingMiddleware(h.StatusHandler))
-	http.HandleFunc("/result", loggingMiddleware(h.ResultHandler))
+	// Create a middleware for CORS
+	corsMiddleware := func(next http.HandlerFunc) http.HandlerFunc {
+		return func(w http.ResponseWriter, r *http.Request) {
+			// Set CORS headers
+			w.Header().Set("Access-Control-Allow-Origin", "http://localhost:5173")
+			w.Header().Set("Access-Control-Allow-Methods", "GET, POST, OPTIONS")
+			w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
+			if r.Method == http.MethodOptions {
+				w.WriteHeader(http.StatusOK)
+				return
+			}
+			next(w, r)
+		}
+	}
+
+	// Register handlers with logging and CORS middleware
+	http.HandleFunc("/submit", corsMiddleware(loggingMiddleware(h.SubmitHandler)))
+	http.HandleFunc("/status", corsMiddleware(loggingMiddleware(h.StatusHandler)))
+	http.HandleFunc("/result", corsMiddleware(loggingMiddleware(h.ResultHandler)))
 
 	port := ":8080"
 	log.Printf("Server started at %s", port)