diff --git a/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/JwtAuthFilter.java b/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/JwtAuthFilter.java
index b574be6c1..9ed84ec57 100644
--- a/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/JwtAuthFilter.java
+++ b/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/JwtAuthFilter.java
@@ -38,8 +38,8 @@ protected void doFilterInternal(HttpServletRequest request,
                     auth.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                     SecurityContextHolder.getContext().setAuthentication(auth);
                 }
-            } else {
-                // Token present but expired/invalid → 401 so the frontend redirects to login
+            } else if (request.getRequestURI().startsWith("/api/")) {
+                // Solo bloquear rutas de API con token expirado; rutas SPA siguen al frontend
                 response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                 response.setContentType(MediaType.APPLICATION_JSON_VALUE);
                 response.getWriter().write("{\"error\":\"Token expired or invalid\"}");
diff --git a/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/SpaController.java b/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/SpaController.java
index 2e2fab604..06baf76b8 100644
--- a/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/SpaController.java
+++ b/MtdrSpring/backend/src/main/java/com/springboot/MyTodoList/config/SpaController.java
@@ -6,10 +6,14 @@
 @Controller
 public class SpaController {
 
-    // Forward all non-file, non-API routes to index.html so React Router handles them
+    // Reenvía rutas SPA (sin extensión de archivo) a index.html para que React Router las maneje.
+    // Se usan patrones de profundidad fija (hasta 3 niveles) en lugar de /** para no interceptar
+    // assets estáticos como /static/js/bundle.js cuyos sub-segmentos sí contienen puntos.
     @RequestMapping(value = {
-            "/{path:[^\\.]*}",
-            "/{path:[^\\.]*}/**"
+            "/",
+            "/{p1:[^\\.]*}",
+            "/{p1:[^\\.]*}/{p2:[^\\.]*}",
+            "/{p1:[^\\.]*}/{p2:[^\\.]*}/{p3:[^\\.]*}"
     })
     public String forward() {
         return "forward:/index.html";