Why React & Next.js Users Get `ChunkLoadError` After Deployment — And How to Fix It
Imagine this: You have a React or Next.js application running in production. You deploy a new version. New visitors can use the website normally. But some users who already had the website open suddenly see: ChunkLoadError Failed to load chunk Failed to fetch dynamically imported module Loading chunk failed Then they refresh the page... And everything works again. So what's happening? Is the…
When a React or Next.js application is deployed to production, some users who had the site open might encounter a "ChunkLoadError" after the update. This issue isn't caused by the user's browser, but rather by a mismatch between the version of the application running in their browser and the assets available on the server. To address this problem, we need to understand why it occurs and how to prevent it.
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