Zell Liew • 3/27/2024

Handling cookies with Fetch's credentials

This technical article investigates the Fetch API's 'credentials' option, explaining the behavior of its three values ('omit', 'same-origin', 'include') for sending cookies. It details when first-party and third-party cookies are sent, clarifies the role of CORS headers, and distinguishes between sites and origins. The author shares experimental findings and provides a GitHub repository for testing.

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#fetch api #http #Cor