Resolve "Offline fallback page for django legacy pages is misleading in some situations"

Closes #838 (closed)

aleksis/core/vite.config.js

@@ -239,7 +239,7 @@ export default defineConfig({
               plugins: [
                 {
                   fetchDidSucceed: async ({ request, response }) => {
-                    if (response.status < 400) {
+                    if (response.status < 500) {
                       return response;
                     }
                     throw new Error(