Nuxt•17h ago

We're deploying to Vercel but it appears new deployments do not propagate to clients

We're deploying to Vercel but it appears new deployments do not propagate to clients until they hard reload the page. What might be the cause of this? Is this a Vercel issue or some nuxt config I need to use?

2 Replies

kapa.ai•17h ago

Hi @Felix. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- This issue is likely related to caching and how Nuxt handles chunk errors during deployments. Based on the information provided in the knowledge sources, here are a few potential causes and solutions: 1. Chunk Error Handling: Nuxt has a feature to handle chunk errors, which can occur when new deployments replace component chunks. By default, Nuxt will reload the new route when a chunk fails to load during navigation. However, this might not be immediate, causing the issue you're experiencing. You can modify this behavior using the emitRouteChunkError configuration option. To enable immediate reloading when a chunk error occurs, you can add the following to your nuxt.config.ts:

   export default defineNuxtConfig({
     experimental: {
       emitRouteChunkError: 'automatic-immediate'
     }
   })

   export default defineNuxtConfig({
     experimental: {
       emitRouteChunkError: 'automatic-immediate'
     }
   })

This setting will trigger an immediate reload of the current route when a chunk fails to load, potentially resolving the issue of new deployments not propagating until a hard reload. Nuxt Configuration 2. Caching: If you're using Vercel's edge caching features, it's possible that old versions of your app are being served from the cache. You might need to configure your caching strategy or use cache invalidation techniques to ensure that new deployments are immediately available. 3. State Persistence: If your app is maintaining state that's not being updated with new deployments, you might need to consider how you're handling state persistence. Nuxt offers experimental state restoration, which you can enable in your nuxt.config.ts:

   export default defineNuxtConfig({
     experimental: {
       restoreState: true
     }
   })

   export default defineNuxtConfig({
     experimental: {
       restoreState: true
     }
   })

reloadNuxtApp Documentation 4. Serverless Environment: Keep in mind that Vercel uses a serverless environment, which means each request triggers a fresh instance of your Nuxt server. This "stateless" nature can affect how your app behaves across deployments. Serverless Hosting To further diagnose and resolve the issue, you might want to: 1. Implement proper error logging to catch any chunk loading errors. 2. Review your Vercel deployment settings, especially regarding caching and edge functions. 3. Consider using the reloadNuxtApp utility in strategic places in your app to force a reload when necessary. If the problem persists after trying these solutions, it may be worth reaching out to Vercel support, as there could be platform-specific factors at play. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•17h ago

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We're deploying to Vercel but it appears new deployments do not propagate to clients

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