frontend finished

backend/app/main.py

@@ -1,6 +1,7 @@
 from typing import Union
 from fastapi import FastAPI
 from app.routes import users, auth
+from fastapi.middleware.cors import CORSMiddleware
 
 """
     ENDPOINTS:
@@ -11,6 +12,19 @@ from app.routes import users, auth
 """
 app = FastAPI(title="FastAPI + MariaDB + 2FA Example")
 
+origins = [
+    "http://localhost:5173",  # tu frontend (vite, react, etc.)
+    "http://127.0.0.1:5173",
+]
+
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=origins,          # or ["*"] para permitir todo (solo dev)
+    allow_credentials=True,
+    allow_methods=["*"],            # GET, POST, PUT, DELETE...
+    allow_headers=["*"],            # Authorization, Content-Type...
+)
+
 # Registramos las rutas
 app.include_router(users.router, tags=["Users"])
 app.include_router(auth.router, tags=["Authentication"])