Best of Cloudflare — August 2025

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   Article

   Cloudflare·40w

   Announcing the Cloudflare Browser Developer Program

   Cloudflare launches a Browser Developer Program to collaborate with browser development teams on improving compatibility between browsers and Cloudflare's security systems like Challenges and Turnstile. The program offers direct communication channels, best practices, early access to updates, and testing integration. It aims to balance security needs with supporting the diverse browser ecosystem, from mainstream browsers to privacy-focused, embedded, and specialized browsers that collectively represent a significant portion of web traffic.

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2. 2
   Article

   Astro·41w

   Astro 5.13

   Astro 5.13 introduces experimental improvements to environment variable handling with staticImportMetaEnv flag that aligns with Vite's behavior and will become default in Astro 6.0. The release adds Chrome DevTools workspace support for live editing, multiple sitemap support, experimental hosted error pages for Node.js adapter, enum support in Astro DB tables, and local Cloudflare KV support. The staticImportMetaEnv feature simplifies environment variable behavior by inlining private meta environment variables instead of replacing them with process.env calls.

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3. 3
   Article

   Groww Engineering·41w

   Migrating to Self-Hosted CodePush: Our Journey to Independence

   Groww Engineering successfully migrated from Microsoft's retiring CodePush service to a self-hosted solution built on Google Cloud Platform. The new system uses GCP Cloud Storage buckets for data and bundles, CloudFlare for edge caching, and maintains API compatibility with minimal React Native app changes. Key achievements include 90% of users downloading updates in under 30 seconds and improved performance through edge caching. The migration involved modernizing legacy code from Promise polyfills to native JavaScript Promises and implementing custom storage adapters for GCP integration.

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