---
title: "Discussion on \"The CORS Error That Was a Race Condition\" | Hashnode"
description: "Discussion on \"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."
url: "https://hashnode.com/posts/the-cors-error-that-was-a-race-condition/6a929d574b9f5949986f9c3c"
---

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# [The CORS Error That Was a Race Condition](https://blog.ashishkrjha.dev/the-cors-error-that-was-a-race-condition?utm_source=hashnode&utm_medium=feed)

The browser blamed CORS. The CORS config was fine. The real fault was two tabs refreshing the same token at the same moment.

Aug 29 · 16 min read · blog.ashishkrjha.dev  
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[Ashish Kr Jha](https://hashnode.com/@Ashish14411)

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