As web developers, we‘ve all been there – you‘re working on a new feature that depends on backend API changes, but those changes aren‘t ready yet. Or maybe you need to test how your app handles different API response scenarios, but it‘s tedious to manually modify the backend. Wouldn‘t it be great if there was…
HAProxy is a powerful load balancer and reverse proxy that can handle massive SSL/TLS workloads. Its high performance, efficient resource usage, and flexible configuration make it a top choice for exposing secure services at scale. Many large websites and apps use HAProxy to terminate and proxy millions of SSL connections. In this in-depth guide, we‘ll…
If you‘ve ever developed a web application using webpack dev server, you may have encountered the dreaded "Access-Control-Allow-Origin header missing" error in your browser console. This error is related to Cross-Origin Resource Sharing (CORS) and can be frustrating to debug and resolve. In this comprehensive guide, we‘ll dive deep into what CORS is, why these…
How to Configure Chrome and Puppeteer to Use a Proxy Server: The Ultimate 2024 Guide If you‘re looking to do web scraping, testing, or automation with headless Chrome or Puppeteer, using a proxy server is often essential. A proxy acts as an intermediary, routing your web traffic through a different IP address. This allows you…
If you‘ve worked with JavaScript objects, chances are you‘ve encountered this dreaded error before: Uncaught TypeError: Cannot read property ‘foo‘ of undefined You go to access a nested property several levels deep in an object, but one of the properties along the way is unexpectedly undefined, and your code blows up. This can easily happen…
Introduction Proxy servers are a fundamental component of modern computer networks, serving as the intermediaries that connect our devices to the vast expanse of the internet. Far from being a one-size-fits-all solution, proxy servers come in many flavors, each with its own strengths, use cases, and configuration options. In this in-depth guide, we‘ll explore the…
Web scraping, the automated collection of data from websites, is an increasingly valuable tool for businesses, researchers, and individuals looking to gather insights from the vast trove of information available online. However, scraping at scale comes with challenges – many websites employ various techniques to detect and block scraping attempts, from IP blocking to CAPTCHAs….
Mastering API Mocking for Mobile App Development with Reproxy Introduction As a mobile app developer, sooner or later you‘ll find yourself in a situation where the backend API you need to integrate with isn‘t quite ready yet. Maybe it‘s still being developed, the environments are down, or the responses aren‘t fully fleshed out. In any…
Introduction As a Linux and proxy expert, I‘ve seen firsthand how proxy maps can revolutionize the way developers work. By intercepting and modifying network requests, proxy maps allow you to decouple your front-end development from back-end dependencies, test various scenarios, and deliver more robust applications. In this comprehensive guide, we‘ll dive deep into the world…
If you‘ve worked on a Vue.js project that uses the webpack dev server (e.g. one created with the Vue CLI), chances are you‘ve encountered the notorious "invalid host header" error at some point. It commonly crops up when trying to access the dev server through a reverse proxy, preventing the application from loading. As a…
In the realm of data extraction, proxy servers have emerged as essential tools for bypassing roadblocks and accessing vast troves of web data. This comprehensive guide, written from the perspective of a seasoned Linux and proxy expert, delves into the intricacies of utilizing proxy servers for efficient and ethical data scraping. The Exponential Growth of…
As a Linux and proxy expert, I‘ve seen my fair share of challenges when it comes to configuring proxies for Angular applications. While proxies are essential for enabling secure and efficient communication between your app and backend APIs, getting the configuration just right can be a daunting task. In this comprehensive guide, we‘ll dive deep…
