reynaldi articles - 35 total
How to Set the Host Header in Fetch (JavaScript)
The Host header is a forbidden header name in the browser, which means JavaScript cannot set it using...
Building a File Sharing App with Puter.js
In this tutorial, we'll build a file sharing app that lets you upload any file and instantly get a...
Building an AI-Powered RAG Application with Puter.js
In this tutorial, we'll build a RAG (Retrieval-Augmented Generation) application that lets you chat...
Why Most APIs Don't Enable CORS?
You might be wondering why some APIs don't enable CORS, and what exactly they're trying to protect....
Building an HTML-to-Image Website Screenshot Tool
Most website screenshot tools require backend infrastructure and setting up browser instances, but...
How Much Bandwidth Do You Need for an API in 2025?
When talking about bandwidth or data transfer in the context of the web, most people think of...
Building a Real-Time Forex Rate Conversion App with Finage API
In the world of international finance and travel, having access to real-time currency exchange rates...
All-in-One Resource: CORS Headers Explained
I'm excited to introduce CORS Headers Explained, an all-in-one resource that explains CORS headers...
Enabling CORS in Flask
When you’re building a full-stack app with a separate frontend and a Flask backend, the browser’s...
What are CORS Safelisted Headers?
A big part of understanding CORS is knowing about CORS safelisted headers. These are the special...
How to Fetch Files From a GitHub Release (Without CORS Errors)
You’re building a web app and need to grab a ZIP or PNG straight from a GitHub release. You send a...
Tainted Canvas: why the browser blocks your canvas (and how to unblock it)
Working with the <canvas> feels simple at first, load an image, draw it, export it. But the...
Create a Tool to Preview Google Suggestions Worldwide 🌐
Google's Autocomplete (or Google Suggest) provides real-time search query suggestions as users type....
How to Fix CORS Error in Flutter Web
Are you running into the No Access-Control-Allow-Origin error while working on your Flutter Web...
How to solve CORS error while fetching an external API? (Solution Explained)
You are building a front end that calls an external API directly from the browser and then sends the...
Create a Cool Music Chart Site with Deezer API 🎧 (No Backend Needed!)
Deezer offers a rich API that provides access to music charts from various countries via playlist...
How to Fix CORS Error in React
Are you running into the No Access-Control-Allow-Origin error while working on your React project?...
Building a Screensaver Website 🖥️ Using Bing Photo of the Day API 📷☀️
Bing offers a nifty API that shows its Photo of the Day. In this article, you'll learn how to build a...
Why does my JavaScript code receive a "No Access-Control-Allow-Origin" error, while Postman does not? (Solution Explained)
You’re testing an API with Postman and everything works fine, but when you switch to your JavaScript...
Trying to use fetch and pass in mode: no-cors (Solution Explained)
Fetching data from client-side JavaScript isn’t as trivial as it seems. Although it works in Postman,...
Fixing Figma Plugin Unable to Hit API Due to CORS Error
When you’re building a Figma plugin, you might notice that making API calls isn’t as straightforward...
Calling Swiggy API
Swiggy is a popular food delivery platform, and while its API isn’t officially documented, many...
CORS Tester - Test CORS Online
I'm excited to introduce CORS Tester, a handy tool built to help you quickly test whether any URL for...
How to Fix CORS Error in Vue.js
Are you running into the No Access-Control-Allow-Origin error while working on your Vue.js project?...
How to Fix CORS Error in Angular
Are you running into the No Access-Control-Allow-Origin error while working on your Angular project?...
7 Key CORS Terms Every Developer Should Know
Ever stumbled on a CORS error and wondered, “Do I really know CORS?” If you’re a developer working...
CORS 101: Understanding Cross-Origin Resource Sharing Fundamentals
If you've run into CORS errors while trying to pull data from an external API, you're not alone. This...
Why mode: "no-cors" won't fix your CORS errors
When dealing with CORS, you've probably seen this error message before. It says to set the request's...
10 Tools and Resources to Master CORS
CORS got you scratching your head? Don't worry, you're not alone. In this article, we are diving into...
CORS Anywhere Alternative: Free vs. Premium CORS Proxy
More experienced devs know about CORS and how to overcome it using a CORS proxy. One of the most...