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1. 🔥 Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure.

   TypeScript 6.7k 924

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   // https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding#Solution_3_%E2%80%93_rewrite_the_DOMs_atob()_and_btoa()_using_JavaScript's_TypedArrays_and_UTF-8

   2

   const base64 = require('base64-js');

   4

   const urlSafe = (buffer) => {

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     const bytes = new Uint8Array(buffer);

3. Quick Boilerplate for Puppeteer and Jest

   JavaScript 1

4. 1

   import { EventEmitter } from 'node:events';

   3

   const channels: Map<string, EventEmitter> = new Map();

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   class MockBroadcastChannel implements BroadcastChannel {