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· 2 min read
Đặng Anh Sơn
Happy developer

Fixing CORS Issue When Calling API

Introduction:

Many developers face issues related to CORS. But what is CORS? CORS is a mechanism that allows various resources (JavaScript) on a web page to be requested from a domain different from the domain of that page. This is the CORS policy error that most developers encounter. When calling an API to a server without the Access-Control-Allow-Origin header or with an invalid value, this error occurs, and data cannot be retrieved from the API.

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