---
name: "tech-tanstack-stale-chunks"
title: "Stale route chunks after deploy"
description: "Missing lazy chunks throw reading 'component'; add reload guard + prerender shells"
type: "tech"
category: "web"
tags: ["tech", "web", "tanstack", "deploy"]
related: ["[[tech-tanstack-start-ssg]]", "[[project-anyrouter]]", "[[tech-cloudflare-pages-deploy]]"]
---
After deploy, old tabs may request deleted lazy chunks → runtime error on `component`.

Mitigations: soft reload on chunk load failure; keep critical shells prerendered. See [[tech-tanstack-start-ssg]], [[project-anyrouter]].