Tim Perry articles - 29 total
The right way to turn off your old APIs
All things come to an end, even HTTP APIs. However great your API may be today, one day you'll want t...
Mining your CLI history for good git aliases
If you use the command-line all day, CLI improvements can add a huge boost to your workflow. One of t...
Intercepting HTTPS on Android
To intercept, inspect or manipulate HTTPS traffic, you need the HTTPS client to trust you. If you wa...
Migrating a JS project from Travis to GitHub Actions
Travis has been the most popular place to build open-source code for a long time, but the world is mo...
How to Debug CORS Errors
Your request is hitting an error due to CORS. Not all is lost! Most CORS errors are quick & easy...
GraphQL the Simple Way, or: Don't Use Apollo
The fundamentals of GraphQL are remarkably simple. Nonetheless, a busy hype train & rocket-speed...
Inspecting Android HTTP with a fake VPN
Can you build an Android app that can inspect & rewrite the network traffic from every other app...
How to Debug Node.js Segmentation Faults
Oh no, your JavaScript code isn't just throwing an exception or crashing: it's segfaulting. What does...
Translating between HTTP/1 and HTTP/2
Semantically, what changed in HTTP/2? Multiplexed connections, binary frames, header compression - a...
What's coming in TypeScript 4?
TypeScript 4 is coming up fast: a first beta release is planned for this week (June 25th), with the f...
Bye bye Feature-Policy, hello Permissions-Policy
Ever heard of Feature-Policy? It's a draft W3C web security standard, defining an HTTP header and ifr...
How will user-agent client hints work?
In the coming months, browsers are going to start killing the User-Agent HTTP header to replace it wi...
Will it CORS? - an automatic CORS explainer
Hey Dev.to - today I'm launching WillItCORS.com. It's a quick tool to help everybody learn & unde...
Ignore HTTP Client Errors At Your Peril
There's a lot that can go wrong when talking to servers on the web. When you're building and running...
HTTP 555: User-Defined Resource Error
Does the rise of serverless mean we need a new HTTP status code? The team at Oracle think so. They'v...
Chrome 79+ no longer shows preflight CORS requests
Chrome 79 brings some important changes in its CORS implementation, rolling out now, which mean that...
Global developer CAs considered harmful
Certificate infrastructure is built on trust. If you trust the wrong thing, it all falls down. Unfort...
How to Debug Anything
Originally posted on the HTTP Toolkit blog Debugging is an important skill for any developer. Arguab...
A Crash Course in Price Localization
Naming a price for your latest magnum opus is one of the hardest decisions in releasing a product. In...
Introducing HTTP Mock
Introducing HTTP Mock: Intercept, debug and mock HTTP(S) with zero setup
The 5 Big Features of TypeScript 3.7 and How to Use Them
The TypeScript 3.7 release is coming soon, and it's going to be a big one. The target release date i...
Unblocking Node With Unref()
Node.js runs on an event loop. It holds a queue of tasks to run, and runs them, one by one. New tasks...
React Reverse Portals
New React library to help with performance & simpler state management
Notarizing your Electron App
In the next release of macOS (10.15), if your app isn't notarized, your users can't run it. If you're...
X-Ray Debugging for HTTP
HTTP Toolkit is a suite of open-source & cross-platform tools for developing, debugging & tes...
Bundling Remote Scripts with Webpack
As a JavaScript developer nowadays, almost everything you use comes from npm. Unfortunately, not abso...
Debugging Netlify Function Errors with Sentry
Netlify functions are a quick, easy & powerful tool, but they can be even more difficult to debug...
One-click HTTP debugging for any CLI tool
Debug all HTTP(S) sent by git, npm, apt-get, or anything else The command line is powerful, but can...
Announcing HTTP View: one-click debugging for HTTP(S)
Intercept HTTP(S) with one click, explore & examine traffic up close, and discover exactly what your code is sending.