Zero Budget SPA Prerendering: Cloudflare Workers, Puppeteer & KV Storage

It looks like you're setting up a Cloudflare Worker to prerender URLs from an XML sitemap. This is a great way to ensure that your website's content is quickly available and indexed by search engines, especially if your site relies heavily on JavaScript for rendering.

Here are some steps and tips to help you complete the setup:

1. Ensure Correct Environment Variables: Make sure you have set up the necessary environment variables in Cloudflare Workers. Specifically, PRERENDER_KV_HTML should be correctly configured to point to your KV namespace where prerendered HTML will be stored.

2. Batch Processing: Your current implementation processes URLs in batches of 5. This is a good approach as it prevents overwhelming both the server and the client with too many requests at once. Ensure that you handle pagination properly so users can trigger subsequent batches by incrementing batch parameter.

3. Error Handling: You have basic error handling for when no URLs are found in the sitemap, but consider adding more robust error handling to manage other potential issues like network errors or timeouts during URL fetching and processing.

4. Performance Optimization:

   • Caching Responses: Consider caching responses from your Worker to reduce load on your server.

Read the full article at DEV Community

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