Javascript

Using OpenAI APIs in frontend code is risky — exposing your API key is a security hazard. The solution is a Cloudflare Worker that acts as a secure proxy. Your frontend calls the worker; the worker calls OpenAI with your key. The key stays secret. This guide is beginner-friendly, ELI5 style, and gradually moves to advanced techniques like streaming, caching, and rate-limiting. Beginner: Why You Need a Proxy Imagine you have a magic key that unlocks a powerful AI genie. If you give that key to everyone, anyone can spend your genie’s wishes. That’s what happens if you put your API key in frontend code. ...

Chrome extensions allow you to deeply customize and enhance your browsing experience. Whether you want to modify webpages, create productivity tools, automate tasks, or publish to the Chrome Web Store, extensions provide a powerful yet beginner-friendly platform. This guide takes you from the fundamentals to a fully functioning extension, using Manifest V3, the current standard for Chrome and Chromium-based browsers. Understanding the Chrome Extension Architecture Every Chrome extension is built from the following core components: ...