The CORS Error That Was a Race Condition
The browser blamed CORS. The CORS config was fine. The real fault was two tabs refreshing the same token at the same moment.

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Articles tagged with #javascript
The browser blamed CORS. The CORS config was fine. The real fault was two tabs refreshing the same token at the same moment.

Building a React app inside a sandboxed host with no fetch, XHR, or browser storage: SDK network proxies, platform adapters, async polling, idempotency, and local development.
I measured what a code graph actually saves an AI coding agent across six real tasks, including the case where it costs more than doing nothing.

Turn a large TypeScript codebase into a queryable graph of symbols, calls and state access, so you can finally answer 'does this already exist?' in one command.

Javascript is a programming language and it is highly dependent on functions like many other languages to make code more modular and concise. In functional Programming functions are pure Functions, which means if the input is not changed the output o...
Javascript is a language designed for the Web, Everything that happens in it, happens in an Execution Context. If a program runs in javascript an execution context is created. Everytime an execution context is created it is created in two phases. Cre...